-90.13% is the change from 314 to 31
Calculation steps:
[( 31 - 314 ) ÷ 314] x 100 = -90.13%
Formula
Percentage change = [(31 - 314) / 314] x 100
Subtract the new number by the original number
31 - 314 = -283
-283 ÷ 314 = -0.9012738853503185
-0.9012738853503185 x 100 = -90.13%