7437.5% is the change from 8 to 603
Calculation steps:
[( 603 - 8 ) ÷ 8] x 100 = 7437.5%
Formula
Percentage change = [(603 - 8) / 8] x 100
Subtract the new number by the original number
603 - 8 = 595
595 ÷ 8 = 74.375
74.375 x 100 = 7437.5%
Example