13933.33% is the change from 3 to 421
Calculation steps:
[( 421 - 3 ) ÷ 3] x 100 = 13933.33%
Formula
Percentage change = [(421 - 3) / 3] x 100
Subtract the new number by the original number
421 - 3 = 418
418 ÷ 3 = 139.33333333333334
139.33333333333334 x 100 = 13933.33%