-87.04% is the change from 162 to 21
Calculation steps:
[( 21 - 162 ) ÷ 162] x 100 = -87.04%
Formula
Percentage change = [(21 - 162) / 162] x 100
Subtract the new number by the original number
21 - 162 = -141
-141 ÷ 162 = -0.8703703703703703
-0.8703703703703703 x 100 = -87.04%