Business Math Essentials

What you'll build

What you will be able to do

Each lab ends with a concrete result that you build yourself and the checker confirms, cell by cell.

• Calculate a growth rate, a share, a change in percentage points and an original price hidden behind a price increase.
• Compare three butter offers per kg, express them as ratios to the cheapest and scale a croissant recipe to a bigger batch.
• Grow Nora's savings with simple and with compound interest, then add monthly compounding and the effective annual rate.
• Work out the net price after three successive discounts, the single equivalent discount, a promotion price and the margin that is left.
• Compute a weighted grade, the average cost of flour bought in three lots and the blended margin of three product lines.
• Turn euro pack prices into dollars per kg or litre and work out the labour cost of one croissant from an hourly wage.
• Rearrange the profit formula to find break-even loaves, the loaves for a profit target and the price needed at a lower volume, then the exam score Leo needs.
• Compare the Rule of 72 with the exact doubling time, compute the bakery's average yearly growth (CAGR) and the half-life of an oven's book value.