3137.5% is the change from 8 to 259
Calculation steps:
[( 259 - 8 ) ÷ 8] x 100 = 3137.5%
Formula
Percentage change = [(259 - 8) / 8] x 100
Subtract the new number by the original number
259 - 8 = 251
251 ÷ 8 = 31.375
31.375 x 100 = 3137.5%
Example