1415% is the change from 20 to 303
Calculation steps:
[( 303 - 20 ) ÷ 20] x 100 = 1415%
Formula
Percentage change = [(303 - 20) / 20] x 100
Subtract the new number by the original number
303 - 20 = 283
283 ÷ 20 = 14.15
14.15 x 100 = 1415%
Example