-99.84% is the change from 617 to 1
Calculation steps:
[( 1 - 617 ) ÷ 617] x 100 = -99.84%
Formula
Percentage change = [(1 - 617) / 617] x 100
Subtract the new number by the original number
1 - 617 = -616
-616 ÷ 617 = -0.9983792544570502
-0.9983792544570502 x 100 = -99.84%