Grade 6 · The Market Year · Week 10

Revenue Is a Formula

You have been adding sales up for two years. This week it gets a letter and stops being addition.

This game goes with week 10 of the workbook. Do the page first; the game is for seeing the numbers move. Nothing you type is kept.

Put the numbers in

R = p x q. Row a: p is $3.00, q is 14, so R is $42.00.

Row b: p $2.50, q 20. R is$ Row c: p $4.00, q 9. R is$ Row d: p $1.75, q 40. R is$ Row e: p $5.00, q 0. R is$ Row e again, with fixed costs of $12.00. The profit, with its sign, is$

The challenge

Your profit formula, checked on row a with c = $1.20 and f = $12.00. The profit$

What if

p = $ and q =

R = $3.00 x 14 = $42.00

A straight line: every extra one sold adds p to R. Change p and the line tilts. Change q and the dot slides along it.

The workbook: The Market Year (free PDF). The teacher guide: answers and watch-fors.

Other weeks with a game: 3 Out of a Hundred, 4 Markup Is Not Margin, 11 Change the Price, Change the Line, 12 The Market Detective, 20 Pricing Against Somebody Else, 21 What a Discount Really Costs, 22 Bundles, 23 The Share You Are Going For, 31 Your Share of the Market, 35 Did the Move Work?. All games.