Practice!

Sample Problem

The number of VIP members of fitness center was increased by 20% to 300. How many VIP members did the fitness center have before the increase?

members

Solution

Description: Machine generated alternative text: 月卜-----一一一一一一l(〕(〕一一一--------,
Before
After
月卜-~------120%------一州,

Set the original number as 100%, then the increased number is 100% + 20% = 120%.

Use the formula: Whole = Part ÷ Percentage

Whole: original number

Part: increased number 300

Percentage: 120%

Thus, the original number = 300 ÷ 120% = 250