7% is the change from 857 to 917
Calculation steps:
[( 917 - 857 ) ÷ 857] x 100 = 7%
Formula
Percentage change = [(917 - 857) / 857] x 100
Subtract the new number by the original number
917 - 857 = 60
60 ÷ 857 = 0.07001166861143523
0.07001166861143523 x 100 = 7%