How do you do percentage increase?

Answer 1

Do you mean 'how do you calculate the percent increase?'

If so, talking prices, subtract selling price - cost. Then divide thet answer by the cost and multiply by 100 to change to a percent.

Example A car lot sells a car for 36,000 that it bought for 30,000

36000 -30000 = 6000

6000/30000 x 100 = 20% increase

Same for anything else ... 1 caught 10 fish this week. I caught 8 least week. What is the incresee?

10 - 8 = 2

2 / 8 x100 = 25% increase

Answer 2

From 7.8 to 12, what is the percentage increase?

(12−7.8) ÷ 7.8 × 100 = 53.85%