7537.5% is the change from 8 to 611
Calculation steps:
[( 611 - 8 ) ÷ 8] x 100 = 7537.5%
Formula
Percentage change = [(611 - 8) / 8] x 100
Subtract the new number by the original number
611 - 8 = 603
603 ÷ 8 = 75.375
75.375 x 100 = 7537.5%
Example