-45.27% is the change from 581 to 318
Calculation steps:
[( 318 - 581 ) ÷ 581] x 100 = -45.27%
Formula
Percentage change = [(318 - 581) / 581] x 100
Subtract the new number by the original number
318 - 581 = -263
-263 ÷ 581 = -0.45266781411359724
-0.45266781411359724 x 100 = -45.27%