-44.37% is the change from 311 to 173
Calculation steps:
[( 173 - 311 ) ÷ 311] x 100 = -44.37%
Formula
Percentage change = [(173 - 311) / 311] x 100
Subtract the new number by the original number
173 - 311 = -138
-138 ÷ 311 = -0.4437299035369775
-0.4437299035369775 x 100 = -44.37%