2921.43% is the change from 14 to 423
Calculation steps:
[( 423 - 14 ) ÷ 14] x 100 = 2921.43%
Formula
Percentage change = [(423 - 14) / 14] x 100
Subtract the new number by the original number
423 - 14 = 409
409 ÷ 14 = 29.214285714285715
29.214285714285715 x 100 = 2921.43%