-10.22% is the change from 910 to 817
Calculation steps:
[( 817 - 910 ) ÷ 910] x 100 = -10.22%
Formula
Percentage change = [(817 - 910) / 910] x 100
Subtract the new number by the original number
817 - 910 = -93
-93 ÷ 910 = -0.1021978021978022
-0.1021978021978022 x 100 = -10.22%