-43.16% is the change from 950 to 540
Calculation steps:
[( 540 - 950 ) ÷ 950] x 100 = -43.16%
Formula
Percentage change = [(540 - 950) / 950] x 100
Subtract the new number by the original number
540 - 950 = -410
-410 ÷ 950 = -0.43157894736842106
-0.43157894736842106 x 100 = -43.16%