1220.55% is the change from 73 to 964
Calculation steps:
[( 964 - 73 ) ÷ 73] x 100 = 1220.55%
Formula
Percentage change = [(964 - 73) / 73] x 100
Subtract the new number by the original number
964 - 73 = 891
891 ÷ 73 = 12.205479452054794
12.205479452054794 x 100 = 1220.55%