17.56% is the change from 780 to 917
Calculation steps:
[( 917 - 780 ) ÷ 780] x 100 = 17.56%
Formula
Percentage change = [(917 - 780) / 780] x 100
Subtract the new number by the original number
917 - 780 = 137
137 ÷ 780 = 0.17564102564102563
0.17564102564102563 x 100 = 17.56%