-15.25% is the change from 118 to 100
Calculation steps:
[( 100 - 118 ) ÷ 118] x 100 = -15.25%
Formula
Percentage change = [(100 - 118) / 118] x 100
Subtract the new number by the original number
100 - 118 = -18
-18 ÷ 118 = -0.15254237288135594
-0.15254237288135594 x 100 = -15.25%