-79.72% is the change from 917 to 186
Calculation steps:
[( 186 - 917 ) ÷ 917] x 100 = -79.72%
Formula
Percentage change = [(186 - 917) / 917] x 100
Subtract the new number by the original number
186 - 917 = -731
-731 ÷ 917 = -0.797164667393675
-0.797164667393675 x 100 = -79.72%