101.23% is the change from 408 to 821
Calculation steps:
[( 821 - 408 ) ÷ 408] x 100 = 101.23%
Formula
Percentage change = [(821 - 408) / 408] x 100
Subtract the new number by the original number
821 - 408 = 413
413 ÷ 408 = 1.0122549019607843
1.0122549019607843 x 100 = 101.23%