7587.5% is the change from 8 to 615
Calculation steps:
[( 615 - 8 ) ÷ 8] x 100 = 7587.5%
Formula
Percentage change = [(615 - 8) / 8] x 100
Subtract the new number by the original number
615 - 8 = 607
607 ÷ 8 = 75.875
75.875 x 100 = 7587.5%
Example