Course Category: Praxis Practice

Check whether a business is making a profit and can pay its bills on time. On real South African business cases, with fresh numbers every time. Work out gross profit and the net profit margin Test liquidity with the current ratio and the acid-test ratio Work out how many days customers take to pay

Set prices that cover costs and leave a profit, and read markups and margins correctly. On real South African business cases, with fresh numbers every time. Work out a selling price from a markup on cost Work out the margin on selling price, and turn a markup into a margin Work back to the cost…

Say what’s typical in a set of business figures and how much they vary. On real South African business cases, with fresh numbers every time. Work out the mean, the median and the mode Measure the spread with the standard deviation Compare how steady figures are with the coefficient of variation

Use formulas and equations to find the number that makes a business plan work. On real South African business cases, with fresh numbers every time. Substitute figures into a business formula Solve linear equations, including ones with a fraction Work with growth exponents and solve two equations together

Split, compare and scale amounts fairly, and find the best buy. On real South African business cases, with fresh numbers every time. Simplify a ratio and share an amount in a ratio Compare prices with a unit rate to find the best buy Scale an order up or down, and convert foreign currency to rand

Check the everyday figures of work: percentages, VAT, discounts and sensible rounding. On real South African business cases, with fresh numbers every time. Work out a percentage of an amount and a percentage change Split a price into its VAT-exclusive amount and the VAT, and work out discounts Round figures to the place a report…

Check whether the AI is fast and dependable enough. On real business cases, with fresh numbers every time. Work out time to first answer and average response time Find the uptime and the failure rate Measure the response service level

Check whether the AI treats every group fairly. On real business cases, with fresh numbers every time. Work out selection rates by group and the approval gap Find the error rate and false positive rate gaps Measure the disparate impact ratio

Check whether a prediction model is accurate enough. On real business cases, with fresh numbers every time. Work out accuracy, precision and recall Weigh false alarms against missed cases Price the errors per 1,000 decisions

Find out whether your AI project is paying off. On real business cases, with fresh numbers every time. Work out the total cost of ownership and the annual net benefit Find the AI ROI and the payback period Measure the NPV of the AI project