-8.25% is the change from 909 to 834
Calculation steps:
[( 834 - 909 ) ÷ 909] x 100 = -8.25%
Formula
Percentage change = [(834 - 909) / 909] x 100
Subtract the new number by the original number
834 - 909 = -75
-75 ÷ 909 = -0.08250825082508251
-0.08250825082508251 x 100 = -8.25%