10% is the change from 770 to 847
Calculation steps:
[( 847 - 770 ) ÷ 770] x 100 = 10%
Formula
Percentage change = [(847 - 770) / 770] x 100
Subtract the new number by the original number
847 - 770 = 77
77 ÷ 770 = 0.1
0.1 x 100 = 10%
Example