-40.51% is the change from 311 to 185
Calculation steps:
[( 185 - 311 ) ÷ 311] x 100 = -40.51%
Formula
Percentage change = [(185 - 311) / 311] x 100
Subtract the new number by the original number
185 - 311 = -126
-126 ÷ 311 = -0.40514469453376206
-0.40514469453376206 x 100 = -40.51%