-87.9% is the change from 917 to 111
Calculation steps:
[( 111 - 917 ) ÷ 917] x 100 = -87.9%
Formula
Percentage change = [(111 - 917) / 917] x 100
Subtract the new number by the original number
111 - 917 = -806
-806 ÷ 917 = -0.8789531079607416
-0.8789531079607416 x 100 = -87.9%