24.02% is the change from 662 to 821
Calculation steps:
[( 821 - 662 ) ÷ 662] x 100 = 24.02%
Formula
Percentage change = [(821 - 662) / 662] x 100
Subtract the new number by the original number
821 - 662 = 159
159 ÷ 662 = 0.24018126888217523
0.24018126888217523 x 100 = 24.02%