90.26% is the change from 421 to 801
Calculation steps:
[( 801 - 421 ) ÷ 421] x 100 = 90.26%
Formula
Percentage change = [(801 - 421) / 421] x 100
Subtract the new number by the original number
801 - 421 = 380
380 ÷ 421 = 0.9026128266033254
0.9026128266033254 x 100 = 90.26%