5000% is the change from 8 to 408
Calculation steps:
[( 408 - 8 ) ÷ 8] x 100 = 5000%
Formula
Percentage change = [(408 - 8) / 8] x 100
Subtract the new number by the original number
408 - 8 = 400
400 ÷ 8 = 50
50 x 100 = 5000%
Example