-11.43% is the change from 175 to 155
Calculation steps:
[( 155 - 175 ) ÷ 175] x 100 = -11.43%
Formula
Percentage change = [(155 - 175) / 175] x 100
Subtract the new number by the original number
155 - 175 = -20
-20 ÷ 175 = -0.11428571428571428
-0.11428571428571428 x 100 = -11.43%