1410% is the change from 20 to 302
Calculation steps:
[( 302 - 20 ) ÷ 20] x 100 = 1410%
Formula
Percentage change = [(302 - 20) / 20] x 100
Subtract the new number by the original number
302 - 20 = 282
282 ÷ 20 = 14.1
14.1 x 100 = 1410%
Example