Utilities
Profit and Loss
Business profits are often calculated on the selling price, and it is useful to have a ready method of comparing profit on selling price.
Rule — Give the percentage profit on cost, to find the percentage profit on selling price. Express the percentage as a vulgar fraction and add the numerator to the denominator, e.g.
| Percentage profit on cost Fraction | First Fraction | Second on sale | Percentage Profit |
|---|---|---|---|
| 20% | 1 / 5 | 1 / 6 | 162 / 3% |
| 25% | 1 / 4 | 1 / 5 | 20% |
| 331 / 3% | 1 / 3 | 1 / 4 | 25% |
| 40% | 2 / 5 | 2 / 7 | 28.57% |
| 50% | 1 / 2 | 1 / 3 | 331 / 3% |