-31.53% is the change from 834 to 571
Calculation steps:
[( 571 - 834 ) ÷ 834] x 100 = -31.53%
Formula
Percentage change = [(571 - 834) / 834] x 100
Subtract the new number by the original number
571 - 834 = -263
-263 ÷ 834 = -0.31534772182254195
-0.31534772182254195 x 100 = -31.53%