-98.11% is the change from 581 to 11
Calculation steps:
[( 11 - 581 ) ÷ 581] x 100 = -98.11%
Formula
Percentage change = [(11 - 581) / 581] x 100
Subtract the new number by the original number
11 - 581 = -570
-570 ÷ 581 = -0.9810671256454389
-0.9810671256454389 x 100 = -98.11%
Example