96.44% is the change from 421 to 827
Calculation steps:
[( 827 - 421 ) ÷ 421] x 100 = 96.44%
Formula
Percentage change = [(827 - 421) / 421] x 100
Subtract the new number by the original number
827 - 421 = 406
406 ÷ 421 = 0.9643705463182898
0.9643705463182898 x 100 = 96.44%