3400% is the change from 14 to 490
Calculation steps:
[( 490 - 14 ) ÷ 14] x 100 = 3400%
Formula
Percentage change = [(490 - 14) / 14] x 100
Subtract the new number by the original number
490 - 14 = 476
476 ÷ 14 = 34
34 x 100 = 3400%
Example