-21.43% is the change from 168 to 132
Calculation steps:
[( 132 - 168 ) ÷ 168] x 100 = -21.43%
Formula
Percentage change = [(132 - 168) / 168] x 100
Subtract the new number by the original number
132 - 168 = -36
-36 ÷ 168 = -0.21428571428571427
-0.21428571428571427 x 100 = -21.43%