7687.5% is the change from 8 to 623
Calculation steps:
[( 623 - 8 ) ÷ 8] x 100 = 7687.5%
Formula
Percentage change = [(623 - 8) / 8] x 100
Subtract the new number by the original number
623 - 8 = 615
615 ÷ 8 = 76.875
76.875 x 100 = 7687.5%
Example