-38.6% is the change from 215 to 132
Calculation steps:
[( 132 - 215 ) ÷ 215] x 100 = -38.6%
Formula
Percentage change = [(132 - 215) / 215] x 100
Subtract the new number by the original number
132 - 215 = -83
-83 ÷ 215 = -0.386046511627907
-0.386046511627907 x 100 = -38.6%