-91.29% is the change from 356 to 31
Calculation steps:
[( 31 - 356 ) ÷ 356] x 100 = -91.29%
Formula
Percentage change = [(31 - 356) / 356] x 100
Subtract the new number by the original number
31 - 356 = -325
-325 ÷ 356 = -0.9129213483146067
-0.9129213483146067 x 100 = -91.29%