-42.63% is the change from 950 to 545
Calculation steps:
[( 545 - 950 ) ÷ 950] x 100 = -42.63%
Formula
Percentage change = [(545 - 950) / 950] x 100
Subtract the new number by the original number
545 - 950 = -405
-405 ÷ 950 = -0.4263157894736842
-0.4263157894736842 x 100 = -42.63%