-81.18% is the change from 170 to 32
Calculation steps:
[( 32 - 170 ) ÷ 170] x 100 = -81.18%
Formula
Percentage change = [(32 - 170) / 170] x 100
Subtract the new number by the original number
32 - 170 = -138
-138 ÷ 170 = -0.8117647058823529
-0.8117647058823529 x 100 = -81.18%