-30.87% is the change from 826 to 571
Calculation steps:
[( 571 - 826 ) ÷ 826] x 100 = -30.87%
Formula
Percentage change = [(571 - 826) / 826] x 100
Subtract the new number by the original number
571 - 826 = -255
-255 ÷ 826 = -0.30871670702179177
-0.30871670702179177 x 100 = -30.87%