440.74% is the change from 81 to 438
Calculation steps:
[( 438 - 81 ) ÷ 81] x 100 = 440.74%
Formula
Percentage change = [(438 - 81) / 81] x 100
Subtract the new number by the original number
438 - 81 = 357
357 ÷ 81 = 4.407407407407407
4.407407407407407 x 100 = 440.74%