2400% is the change from 14 to 350
Calculation steps:
[( 350 - 14 ) ÷ 14] x 100 = 2400%
Formula
Percentage change = [(350 - 14) / 14] x 100
Subtract the new number by the original number
350 - 14 = 336
336 ÷ 14 = 24
24 x 100 = 2400%
Example