-93.56% is the change from 481 to 31
Calculation steps:
[( 31 - 481 ) ÷ 481] x 100 = -93.56%
Formula
Percentage change = [(31 - 481) / 481] x 100
Subtract the new number by the original number
31 - 481 = -450
-450 ÷ 481 = -0.9355509355509356
-0.9355509355509356 x 100 = -93.56%