93.81% is the change from 420 to 814
Calculation steps:
[( 814 - 420 ) ÷ 420] x 100 = 93.81%
Formula
Percentage change = [(814 - 420) / 420] x 100
Subtract the new number by the original number
814 - 420 = 394
394 ÷ 420 = 0.9380952380952381
0.9380952380952381 x 100 = 93.81%