9.31% is the change from 784 to 857
Calculation steps:
[( 857 - 784 ) ÷ 784] x 100 = 9.31%
Formula
Percentage change = [(857 - 784) / 784] x 100
Subtract the new number by the original number
857 - 784 = 73
73 ÷ 784 = 0.09311224489795919
0.09311224489795919 x 100 = 9.31%