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