1072.6% is the change from 73 to 856
Calculation steps:
[( 856 - 73 ) ÷ 73] x 100 = 1072.6%
Formula
Percentage change = [(856 - 73) / 73] x 100
Subtract the new number by the original number
856 - 73 = 783
783 ÷ 73 = 10.726027397260275
10.726027397260275 x 100 = 1072.6%