-4.21% is the change from 951 to 911
Calculation steps:
[( 911 - 951 ) ÷ 951] x 100 = -4.21%
Formula
Percentage change = [(911 - 951) / 951] x 100
Subtract the new number by the original number
911 - 951 = -40
-40 ÷ 951 = -0.04206098843322818
-0.04206098843322818 x 100 = -4.21%