-68.92% is the change from 917 to 285
Calculation steps:
[( 285 - 917 ) ÷ 917] x 100 = -68.92%
Formula
Percentage change = [(285 - 917) / 917] x 100
Subtract the new number by the original number
285 - 917 = -632
-632 ÷ 917 = -0.6892039258451472
-0.6892039258451472 x 100 = -68.92%