-97.71% is the change from 175 to 4
Calculation steps:
[( 4 - 175 ) ÷ 175] x 100 = -97.71%
Formula
Percentage change = [(4 - 175) / 175] x 100
Subtract the new number by the original number
4 - 175 = -171
-171 ÷ 175 = -0.9771428571428571
-0.9771428571428571 x 100 = -97.71%