3361.54% is the change from 13 to 450
Calculation steps:
[( 450 - 13 ) ÷ 13] x 100 = 3361.54%
Formula
Percentage change = [(450 - 13) / 13] x 100
Subtract the new number by the original number
450 - 13 = 437
437 ÷ 13 = 33.61538461538461
33.61538461538461 x 100 = 3361.54%