9.38% is the change from 768 to 840
Calculation steps:
[( 840 - 768 ) ÷ 768] x 100 = 9.38%
Formula
Percentage change = [(840 - 768) / 768] x 100
Subtract the new number by the original number
840 - 768 = 72
72 ÷ 768 = 0.09375
0.09375 x 100 = 9.38%
Example