-79.17% is the change from 917 to 191
Calculation steps:
[( 191 - 917 ) ÷ 917] x 100 = -79.17%
Formula
Percentage change = [(191 - 917) / 917] x 100
Subtract the new number by the original number
191 - 917 = -726
-726 ÷ 917 = -0.7917121046892039
-0.7917121046892039 x 100 = -79.17%