-1.21% is the change from 660 to 652
Calculation steps:
[( 652 - 660 ) ÷ 660] x 100 = -1.21%
Formula
Percentage change = [(652 - 660) / 660] x 100
Subtract the new number by the original number
652 - 660 = -8
-8 ÷ 660 = -0.012121212121212121
-0.012121212121212121 x 100 = -1.21%