92.27% is the change from 427 to 821
Calculation steps:
[( 821 - 427 ) ÷ 427] x 100 = 92.27%
Formula
Percentage change = [(821 - 427) / 427] x 100
Subtract the new number by the original number
821 - 427 = 394
394 ÷ 427 = 0.9227166276346604
0.9227166276346604 x 100 = 92.27%