2840% is the change from 10 to 294
Calculation steps:
[( 294 - 10 ) ÷ 10] x 100 = 2840%
Formula
Percentage change = [(294 - 10) / 10] x 100
Subtract the new number by the original number
294 - 10 = 284
284 ÷ 10 = 28.4
28.4 x 100 = 2840%
Example