-81.36% is the change from 617 to 115
Calculation steps:
[( 115 - 617 ) ÷ 617] x 100 = -81.36%
Formula
Percentage change = [(115 - 617) / 617] x 100
Subtract the new number by the original number
115 - 617 = -502
-502 ÷ 617 = -0.813614262560778
-0.813614262560778 x 100 = -81.36%