-48.3% is the change from 176 to 91
Calculation steps:
[( 91 - 176 ) ÷ 176] x 100 = -48.3%
Formula
Percentage change = [(91 - 176) / 176] x 100
Subtract the new number by the original number
91 - 176 = -85
-85 ÷ 176 = -0.48295454545454547
-0.48295454545454547 x 100 = -48.3%