2440% is the change from 10 to 254
Calculation steps:
[( 254 - 10 ) ÷ 10] x 100 = 2440%
Formula
Percentage change = [(254 - 10) / 10] x 100
Subtract the new number by the original number
254 - 10 = 244
244 ÷ 10 = 24.4
24.4 x 100 = 2440%
Example