3.97% is the change from 781 to 812
Calculation steps:
[( 812 - 781 ) ÷ 781] x 100 = 3.97%
Formula
Percentage change = [(812 - 781) / 781] x 100
Subtract the new number by the original number
812 - 781 = 31
31 ÷ 781 = 0.03969270166453265
0.03969270166453265 x 100 = 3.97%