4.09% is the change from 807 to 840
Calculation steps:
[( 840 - 807 ) ÷ 807] x 100 = 4.09%
Formula
Percentage change = [(840 - 807) / 807] x 100
Subtract the new number by the original number
840 - 807 = 33
33 ÷ 807 = 0.040892193308550186
0.040892193308550186 x 100 = 4.09%