439.51% is the change from 81 to 437
Calculation steps:
[( 437 - 81 ) ÷ 81] x 100 = 439.51%
Formula
Percentage change = [(437 - 81) / 81] x 100
Subtract the new number by the original number
437 - 81 = 356
356 ÷ 81 = 4.395061728395062
4.395061728395062 x 100 = 439.51%