-87.36% is the change from 617 to 78
Calculation steps:
[( 78 - 617 ) ÷ 617] x 100 = -87.36%
Formula
Percentage change = [(78 - 617) / 617] x 100
Subtract the new number by the original number
78 - 617 = -539
-539 ÷ 617 = -0.873581847649919
-0.873581847649919 x 100 = -87.36%