-56% is the change from 175 to 77
Calculation steps:
[( 77 - 175 ) ÷ 175] x 100 = -56%
Formula
Percentage change = [(77 - 175) / 175] x 100
Subtract the new number by the original number
77 - 175 = -98
-98 ÷ 175 = -0.56
-0.56 x 100 = -56%
Example