-74.81% is the change from 917 to 231
Calculation steps:
[( 231 - 917 ) ÷ 917] x 100 = -74.81%
Formula
Percentage change = [(231 - 917) / 917] x 100
Subtract the new number by the original number
231 - 917 = -686
-686 ÷ 917 = -0.7480916030534351
-0.7480916030534351 x 100 = -74.81%