-30.42% is the change from 835 to 581
Calculation steps:
[( 581 - 835 ) ÷ 835] x 100 = -30.42%
Formula
Percentage change = [(581 - 835) / 835] x 100
Subtract the new number by the original number
581 - 835 = -254
-254 ÷ 835 = -0.30419161676646705
-0.30419161676646705 x 100 = -30.42%