9.45% is the change from 857 to 938
Calculation steps:
[( 938 - 857 ) ÷ 857] x 100 = 9.45%
Formula
Percentage change = [(938 - 857) / 857] x 100
Subtract the new number by the original number
938 - 857 = 81
81 ÷ 857 = 0.09451575262543757
0.09451575262543757 x 100 = 9.45%