-47.33% is the change from 581 to 306
Calculation steps:
[( 306 - 581 ) ÷ 581] x 100 = -47.33%
Formula
Percentage change = [(306 - 581) / 581] x 100
Subtract the new number by the original number
306 - 581 = -275
-275 ÷ 581 = -0.47332185886402756
-0.47332185886402756 x 100 = -47.33%