-12.1% is the change from 917 to 806
Calculation steps:
[( 806 - 917 ) ÷ 917] x 100 = -12.1%
Formula
Percentage change = [(806 - 917) / 917] x 100
Subtract the new number by the original number
806 - 917 = -111
-111 ÷ 917 = -0.12104689203925845
-0.12104689203925845 x 100 = -12.1%