-72.39% is the change from 163 to 45
Calculation steps:
[( 45 - 163 ) ÷ 163] x 100 = -72.39%
Formula
Percentage change = [(45 - 163) / 163] x 100
Subtract the new number by the original number
45 - 163 = -118
-118 ÷ 163 = -0.7239263803680982
-0.7239263803680982 x 100 = -72.39%