7550% is the change from 8 to 612
Calculation steps:
[( 612 - 8 ) ÷ 8] x 100 = 7550%
Formula
Percentage change = [(612 - 8) / 8] x 100
Subtract the new number by the original number
612 - 8 = 604
604 ÷ 8 = 75.5
75.5 x 100 = 7550%
Example