-87.67% is the change from 146 to 18
Calculation steps:
[( 18 - 146 ) ÷ 146] x 100 = -87.67%
Formula
Percentage change = [(18 - 146) / 146] x 100
Subtract the new number by the original number
18 - 146 = -128
-128 ÷ 146 = -0.8767123287671232
-0.8767123287671232 x 100 = -87.67%