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Praxis Learn™

Numbers for Business

The everyday numbers every business runs on: percentages, ratios, pricing, interest and break-even. A season is five episodes, one metric each, with its practice pack and one certificate at the end.

8 seasons40 micro courses8 practice packsR695 a season · 12 months

Seasons

Choose a season

Each season is five episodes on metrics that belong together, with the practice pack for every metric and one certificate. Launch prices are shown.

Numbers for Business

Season 1 · 5 episodes

Numbers at work

Check that the figures are right: percentages, VAT, discounts and sensible rounding.

  • Percentage of an amount
  • Percentage change
  • VAT inclusive and exclusive
  • Discounts
  • Rounding and estimation
Practice packCertificate12 months' access
LAUNCH OFFERR695 · US$49
See the season →
Numbers for Business

Season 2 · 5 episodes

Ratios and proportion

Split, compare and scale amounts fairly with ratios and rates.

  • Simplifying a ratio
  • Sharing in a ratio
  • Unit rate (best buy)
  • Scaling an order
  • Currency conversion
Practice packCertificate12 months' access
LAUNCH OFFERR695 · US$49
See the season →
Numbers for Business

Season 3 · 5 episodes

Business algebra

Find the number that makes a business formula work.

  • Substituting into a formula
  • Linear equations
  • Equations with fractions
  • Exponents
  • Simultaneous equations
Practice packCertificate12 months' access
LAUNCH OFFERR695 · US$49
See the season →
Numbers for Business

Season 4 · 5 episodes

Making sense of data

Say what's typical in a set of figures and how much they vary.

  • Mean
  • Median
  • Mode
  • Standard deviation
  • Coefficient of variation
Practice packCertificate12 months' access
LAUNCH OFFERR695 · US$49
See the season →
Numbers for Business

Season 5 · 5 episodes

Pricing for profit

Set prices that cover costs and leave the profit you need.

  • Markup on cost
  • Margin on selling price
  • Cost price from selling price
  • Markup to margin conversion
  • Gross profit margin
Practice packCertificate12 months' access
LAUNCH OFFERR695 · US$49
See the season →
Numbers for Business

Season 6 · 5 episodes

Is the business healthy?

Read the statements to see whether a business makes money and can pay its bills.

  • Gross profit
  • Net profit margin
  • Current ratio
  • Acid-test ratio
  • Debtors collection period
Practice packCertificate12 months' access
LAUNCH OFFERR695 · US$49
See the season →
Numbers for Business

Season 7 · 5 episodes

Money over time

Work out what money is worth later, or today, once interest is added.

  • Simple interest
  • Compound interest
  • Effective annual rate
  • Future value (monthly compounding)
  • Present value
Practice packCertificate12 months' access
LAUNCH OFFERR695 · US$49
See the season →
Numbers for Business

Season 8 · 5 episodes

Costs and break-even

Work out costs and how many you must sell to break even.

  • Total cost
  • Contribution margin per unit
  • Break-even units
  • Break-even sales value
  • Margin of safety
Practice packCertificate12 months' access
LAUNCH OFFERR695 · US$49
See the season →

Practice packs

Just practice

A practice pack is the self-marking practice tools of one topic: new numbers every attempt, marked as you type, with the working when you want it. No course and no certificate.

Numbers for Business

Practice pack

Numbers at work

Check that the figures are right: percentages, VAT, discounts and sensible rounding.

  • Percentage of an amount
  • Percentage change
  • VAT inclusive and exclusive
  • Discounts
  • Rounding and estimation
Fresh numbers every time12 months' accessNo certificate
LAUNCH OFFERR395 · US$29
See the pack →
Numbers for Business

Practice pack

Ratios and proportion

Split, compare and scale amounts fairly with ratios and rates.

  • Simplifying a ratio
  • Sharing in a ratio
  • Unit rate (best buy)
  • Scaling an order
  • Currency conversion
Fresh numbers every time12 months' accessNo certificate
LAUNCH OFFERR395 · US$29
See the pack →
Numbers for Business

Practice pack

Business algebra

Find the number that makes a business formula work.

  • Substituting into a formula
  • Linear equations
  • Equations with fractions
  • Exponents
  • Simultaneous equations
Fresh numbers every time12 months' accessNo certificate
LAUNCH OFFERR395 · US$29
See the pack →
Numbers for Business

Practice pack

Making sense of data

Say what's typical in a set of figures and how much they vary.

  • Mean
  • Median
  • Mode
  • Standard deviation
  • Coefficient of variation
Fresh numbers every time12 months' accessNo certificate
LAUNCH OFFERR395 · US$29
See the pack →
Numbers for Business

Practice pack

Pricing for profit

Set prices that cover costs and leave the profit you need.

  • Markup on cost
  • Margin on selling price
  • Cost price from selling price
  • Markup to margin conversion
  • Gross profit margin
Fresh numbers every time12 months' accessNo certificate
LAUNCH OFFERR395 · US$29
See the pack →
Numbers for Business

Practice pack

Is the business healthy?

Read the statements to see whether a business makes money and can pay its bills.

  • Gross profit
  • Net profit margin
  • Current ratio
  • Acid-test ratio
  • Debtors collection period
Fresh numbers every time12 months' accessNo certificate
LAUNCH OFFERR395 · US$29
See the pack →
Numbers for Business

Practice pack

Money over time

Work out what money is worth later, or today, once interest is added.

  • Simple interest
  • Compound interest
  • Effective annual rate
  • Future value (monthly compounding)
  • Present value
Fresh numbers every time12 months' accessNo certificate
LAUNCH OFFERR395 · US$29
See the pack →
Numbers for Business

Practice pack

Costs and break-even

Work out costs and how many you must sell to break even.

  • Total cost
  • Contribution margin per unit
  • Break-even units
  • Break-even sales value
  • Margin of safety
Fresh numbers every time12 months' accessNo certificate
LAUNCH OFFERR395 · US$29
See the pack →

40 Numbers for Business micro courses

Every metric is also a micro course on its own: five scenes, a practice tool and a certificate, R295 · US$19, lifetime access.

Browse the micro courses →

How a season works

Learn it, practice it, prove it

  1. 01

    Learn each metric

    Five episodes, one metric each: what it measures, how to work it out and how to read the result.

  2. 02

    Practice until it clicks

    Cases from different businesses, with new numbers every time. Your answer is marked as you type.

  3. 03

    Get help when stuck

    Hints point to the step that went wrong, never just the answer. Want a person to talk it through? Book a tutor session as an optional add-on.

  4. 04

    Earn the certificate

    Finish every episode and the practice pack in the season and you get one certificate for the lot.

Just one metric

Only need one metric?

Every micro course is also available on its own, with its certificate, at a launch-offer price of R295 or US$19.

R295lifetime access
Browse all micro courses →

One whole series

Want more than one season?

Full series access gives you every season and micro course in one series of your choice for 12 months, with the practice tools built into every season. Tutoring is an optional add-on.

R3,60012 months
Compare Full series access →