-3.89% is the change from 950 to 913
Calculation steps:
[( 913 - 950 ) ÷ 950] x 100 = -3.89%
Formula
Percentage change = [(913 - 950) / 950] x 100
Subtract the new number by the original number
913 - 950 = -37
-37 ÷ 950 = -0.03894736842105263
-0.03894736842105263 x 100 = -3.89%