-68.7% is the change from 591 to 185
Calculation steps:
[( 185 - 591 ) ÷ 591] x 100 = -68.7%
Formula
Percentage change = [(185 - 591) / 591] x 100
Subtract the new number by the original number
185 - 591 = -406
-406 ÷ 591 = -0.6869712351945855
-0.6869712351945855 x 100 = -68.7%