2680% is the change from 10 to 278
Calculation steps:
[( 278 - 10 ) ÷ 10] x 100 = 2680%
Formula
Percentage change = [(278 - 10) / 10] x 100
Subtract the new number by the original number
278 - 10 = 268
268 ÷ 10 = 26.8
26.8 x 100 = 2680%
Example