18.18% is the change from 770 to 910
Calculation steps:
[( 910 - 770 ) ÷ 770] x 100 = 18.18%
Formula
Percentage change = [(910 - 770) / 770] x 100
Subtract the new number by the original number
910 - 770 = 140
140 ÷ 770 = 0.18181818181818182
0.18181818181818182 x 100 = 18.18%