-99.81% is the change from 513 to 1
Calculation steps:
[( 1 - 513 ) ÷ 513] x 100 = -99.81%
Formula
Percentage change = [(1 - 513) / 513] x 100
Subtract the new number by the original number
1 - 513 = -512
-512 ÷ 513 = -0.9980506822612085
-0.9980506822612085 x 100 = -99.81%