2350% is the change from 14 to 343
Calculation steps:
[( 343 - 14 ) ÷ 14] x 100 = 2350%
Formula
Percentage change = [(343 - 14) / 14] x 100
Subtract the new number by the original number
343 - 14 = 329
329 ÷ 14 = 23.5
23.5 x 100 = 2350%
Example