-9.85% is the change from 660 to 595
Calculation steps:
[( 595 - 660 ) ÷ 660] x 100 = -9.85%
Formula
Percentage change = [(595 - 660) / 660] x 100
Subtract the new number by the original number
595 - 660 = -65
-65 ÷ 660 = -0.09848484848484848
-0.09848484848484848 x 100 = -9.85%