3000% is the change from 8 to 248
Calculation steps:
[( 248 - 8 ) ÷ 8] x 100 = 3000%
Formula
Percentage change = [(248 - 8) / 8] x 100
Subtract the new number by the original number
248 - 8 = 240
240 ÷ 8 = 30
30 x 100 = 3000%
Example