-19.51% is the change from 164 to 132
Calculation steps:
[( 132 - 164 ) ÷ 164] x 100 = -19.51%
Formula
Percentage change = [(132 - 164) / 164] x 100
Subtract the new number by the original number
132 - 164 = -32
-32 ÷ 164 = -0.1951219512195122
-0.1951219512195122 x 100 = -19.51%