1330% is the change from 20 to 286
Calculation steps:
[( 286 - 20 ) ÷ 20] x 100 = 1330%
Formula
Percentage change = [(286 - 20) / 20] x 100
Subtract the new number by the original number
286 - 20 = 266
266 ÷ 20 = 13.3
13.3 x 100 = 1330%
Example