-47.26% is the change from 950 to 501
Calculation steps:
[( 501 - 950 ) ÷ 950] x 100 = -47.26%
Formula
Percentage change = [(501 - 950) / 950] x 100
Subtract the new number by the original number
501 - 950 = -449
-449 ÷ 950 = -0.4726315789473684
-0.4726315789473684 x 100 = -47.26%