-73.6% is the change from 663 to 175
Calculation steps:
[( 175 - 663 ) ÷ 663] x 100 = -73.6%
Formula
Percentage change = [(175 - 663) / 663] x 100
Subtract the new number by the original number
175 - 663 = -488
-488 ÷ 663 = -0.7360482654600302
-0.7360482654600302 x 100 = -73.6%