335% is the change from 20 to 87
Calculation steps:
[( 87 - 20 ) ÷ 20] x 100 = 335%
Formula
Percentage change = [(87 - 20) / 20] x 100
Subtract the new number by the original number
87 - 20 = 67
67 ÷ 20 = 3.35
3.35 x 100 = 335%
Example