-44.92% is the change from 581 to 320
Calculation steps:
[( 320 - 581 ) ÷ 581] x 100 = -44.92%
Formula
Percentage change = [(320 - 581) / 581] x 100
Subtract the new number by the original number
320 - 581 = -261
-261 ÷ 581 = -0.44922547332185886
-0.44922547332185886 x 100 = -44.92%