-4% is the change from 175 to 168
Calculation steps:
[( 168 - 175 ) ÷ 175] x 100 = -4%
Formula
Percentage change = [(168 - 175) / 175] x 100
Subtract the new number by the original number
168 - 175 = -7
-7 ÷ 175 = -0.04
-0.04 x 100 = -4%
Example