-99.03% is the change from 617 to 6
Calculation steps:
[( 6 - 617 ) ÷ 617] x 100 = -99.03%
Formula
Percentage change = [(6 - 617) / 617] x 100
Subtract the new number by the original number
6 - 617 = -611
-611 ÷ 617 = -0.9902755267423015
-0.9902755267423015 x 100 = -99.03%