81.19% is the change from 420 to 761
Calculation steps:
[( 761 - 420 ) ÷ 420] x 100 = 81.19%
Formula
Percentage change = [(761 - 420) / 420] x 100
Subtract the new number by the original number
761 - 420 = 341
341 ÷ 420 = 0.8119047619047619
0.8119047619047619 x 100 = 81.19%