1435% is the change from 20 to 307
Calculation steps:
[( 307 - 20 ) ÷ 20] x 100 = 1435%
Formula
Percentage change = [(307 - 20) / 20] x 100
Subtract the new number by the original number
307 - 20 = 287
287 ÷ 20 = 14.35
14.35 x 100 = 1435%
Example