1021.92% is the change from 73 to 819
Calculation steps:
[( 819 - 73 ) ÷ 73] x 100 = 1021.92%
Formula
Percentage change = [(819 - 73) / 73] x 100
Subtract the new number by the original number
819 - 73 = 746
746 ÷ 73 = 10.219178082191782
10.219178082191782 x 100 = 1021.92%