21.52% is the change from 660 to 802
Calculation steps:
[( 802 - 660 ) ÷ 660] x 100 = 21.52%
Formula
Percentage change = [(802 - 660) / 660] x 100
Subtract the new number by the original number
802 - 660 = 142
142 ÷ 660 = 0.21515151515151515
0.21515151515151515 x 100 = 21.52%