-85.84% is the change from 219 to 31
Calculation steps:
[( 31 - 219 ) ÷ 219] x 100 = -85.84%
Formula
Percentage change = [(31 - 219) / 219] x 100
Subtract the new number by the original number
31 - 219 = -188
-188 ÷ 219 = -0.8584474885844748
-0.8584474885844748 x 100 = -85.84%