90.74% is the change from 421 to 803
Calculation steps:
[( 803 - 421 ) ÷ 421] x 100 = 90.74%
Formula
Percentage change = [(803 - 421) / 421] x 100
Subtract the new number by the original number
803 - 421 = 382
382 ÷ 421 = 0.9073634204275535
0.9073634204275535 x 100 = 90.74%