-18.75% is the change from 112 to 91
Calculation steps:
[( 91 - 112 ) ÷ 112] x 100 = -18.75%
Formula
Percentage change = [(91 - 112) / 112] x 100
Subtract the new number by the original number
91 - 112 = -21
-21 ÷ 112 = -0.1875
-0.1875 x 100 = -18.75%