88.33% is the change from 420 to 791
Calculation steps:
[( 791 - 420 ) ÷ 420] x 100 = 88.33%
Formula
Percentage change = [(791 - 420) / 420] x 100
Subtract the new number by the original number
791 - 420 = 371
371 ÷ 420 = 0.8833333333333333
0.8833333333333333 x 100 = 88.33%