-98.84% is the change from 517 to 6
Calculation steps:
[( 6 - 517 ) ÷ 517] x 100 = -98.84%
Formula
Percentage change = [(6 - 517) / 517] x 100
Subtract the new number by the original number
6 - 517 = -511
-511 ÷ 517 = -0.988394584139265
-0.988394584139265 x 100 = -98.84%