-5.37% is the change from 950 to 899
Calculation steps:
[( 899 - 950 ) ÷ 950] x 100 = -5.37%
Formula
Percentage change = [(899 - 950) / 950] x 100
Subtract the new number by the original number
899 - 950 = -51
-51 ÷ 950 = -0.05368421052631579
-0.05368421052631579 x 100 = -5.37%