-87.59% is the change from 145 to 18
Calculation steps:
[( 18 - 145 ) ÷ 145] x 100 = -87.59%
Formula
Percentage change = [(18 - 145) / 145] x 100
Subtract the new number by the original number
18 - 145 = -127
-127 ÷ 145 = -0.8758620689655172
-0.8758620689655172 x 100 = -87.59%