-20% is the change from 175 to 140
Calculation steps:
[( 140 - 175 ) ÷ 175] x 100 = -20%
Formula
Percentage change = [(140 - 175) / 175] x 100
Subtract the new number by the original number
140 - 175 = -35
-35 ÷ 175 = -0.2
-0.2 x 100 = -20%
Example