-9.92% is the change from 907 to 817
Calculation steps:
[( 817 - 907 ) ÷ 907] x 100 = -9.92%
Formula
Percentage change = [(817 - 907) / 907] x 100
Subtract the new number by the original number
817 - 907 = -90
-90 ÷ 907 = -0.09922822491730982
-0.09922822491730982 x 100 = -9.92%