2587.5% is the change from 8 to 215
Calculation steps:
[( 215 - 8 ) ÷ 8] x 100 = 2587.5%
Formula
Percentage change = [(215 - 8) / 8] x 100
Subtract the new number by the original number
215 - 8 = 207
207 ÷ 8 = 25.875
25.875 x 100 = 2587.5%
Example