-16.21% is the change from 660 to 553
Calculation steps:
[( 553 - 660 ) ÷ 660] x 100 = -16.21%
Formula
Percentage change = [(553 - 660) / 660] x 100
Subtract the new number by the original number
553 - 660 = -107
-107 ÷ 660 = -0.1621212121212121
-0.1621212121212121 x 100 = -16.21%