6312.5% is the change from 8 to 513
Calculation steps:
[( 513 - 8 ) ÷ 8] x 100 = 6312.5%
Formula
Percentage change = [(513 - 8) / 8] x 100
Subtract the new number by the original number
513 - 8 = 505
505 ÷ 8 = 63.125
63.125 x 100 = 6312.5%
Example