90.71% is the change from 420 to 801
Calculation steps:
[( 801 - 420 ) ÷ 420] x 100 = 90.71%
Formula
Percentage change = [(801 - 420) / 420] x 100
Subtract the new number by the original number
801 - 420 = 381
381 ÷ 420 = 0.9071428571428571
0.9071428571428571 x 100 = 90.71%