-85.51% is the change from 214 to 31
Calculation steps:
[( 31 - 214 ) ÷ 214] x 100 = -85.51%
Formula
Percentage change = [(31 - 214) / 214] x 100
Subtract the new number by the original number
31 - 214 = -183
-183 ÷ 214 = -0.8551401869158879
-0.8551401869158879 x 100 = -85.51%