-13.18% is the change from 660 to 573
Calculation steps:
[( 573 - 660 ) ÷ 660] x 100 = -13.18%
Formula
Percentage change = [(573 - 660) / 660] x 100
Subtract the new number by the original number
573 - 660 = -87
-87 ÷ 660 = -0.1318181818181818
-0.1318181818181818 x 100 = -13.18%