-71.97% is the change from 660 to 185
Calculation steps:
[( 185 - 660 ) ÷ 660] x 100 = -71.97%
Formula
Percentage change = [(185 - 660) / 660] x 100
Subtract the new number by the original number
185 - 660 = -475
-475 ÷ 660 = -0.7196969696969697
-0.7196969696969697 x 100 = -71.97%