-14.82% is the change from 857 to 730
Calculation steps:
[( 730 - 857 ) ÷ 857] x 100 = -14.82%
Formula
Percentage change = [(730 - 857) / 857] x 100
Subtract the new number by the original number
730 - 857 = -127
-127 ÷ 857 = -0.14819136522753792
-0.14819136522753792 x 100 = -14.82%