78.31% is the change from 438 to 781
Calculation steps:
[( 781 - 438 ) ÷ 438] x 100 = 78.31%
Formula
Percentage change = [(781 - 438) / 438] x 100
Subtract the new number by the original number
781 - 438 = 343
343 ÷ 438 = 0.7831050228310502
0.7831050228310502 x 100 = 78.31%