-39.89% is the change from 950 to 571
Calculation steps:
[( 571 - 950 ) ÷ 950] x 100 = -39.89%
Formula
Percentage change = [(571 - 950) / 950] x 100
Subtract the new number by the original number
571 - 950 = -379
-379 ÷ 950 = -0.3989473684210526
-0.3989473684210526 x 100 = -39.89%