6.2% is the change from 807 to 857
Calculation steps:
[( 857 - 807 ) ÷ 807] x 100 = 6.2%
Formula
Percentage change = [(857 - 807) / 807] x 100
Subtract the new number by the original number
857 - 807 = 50
50 ÷ 807 = 0.061957868649318466
0.061957868649318466 x 100 = 6.2%