3378.57% is the change from 14 to 487
Calculation steps:
[( 487 - 14 ) ÷ 14] x 100 = 3378.57%
Formula
Percentage change = [(487 - 14) / 14] x 100
Subtract the new number by the original number
487 - 14 = 473
473 ÷ 14 = 33.785714285714285
33.785714285714285 x 100 = 3378.57%