-91.27% is the change from 355 to 31
Calculation steps:
[( 31 - 355 ) ÷ 355] x 100 = -91.27%
Formula
Percentage change = [(31 - 355) / 355] x 100
Subtract the new number by the original number
31 - 355 = -324
-324 ÷ 355 = -0.9126760563380282
-0.9126760563380282 x 100 = -91.27%