128.33% is the change from 420 to 959
Calculation steps:
[( 959 - 420 ) ÷ 420] x 100 = 128.33%
Formula
Percentage change = [(959 - 420) / 420] x 100
Subtract the new number by the original number
959 - 420 = 539
539 ÷ 420 = 1.2833333333333334
1.2833333333333334 x 100 = 128.33%