6337.5% is the change from 8 to 515
Calculation steps:
[( 515 - 8 ) ÷ 8] x 100 = 6337.5%
Formula
Percentage change = [(515 - 8) / 8] x 100
Subtract the new number by the original number
515 - 8 = 507
507 ÷ 8 = 63.375
63.375 x 100 = 6337.5%
Example