1231.51% is the change from 73 to 972
Calculation steps:
[( 972 - 73 ) ÷ 73] x 100 = 1231.51%
Formula
Percentage change = [(972 - 73) / 73] x 100
Subtract the new number by the original number
972 - 73 = 899
899 ÷ 73 = 12.315068493150685
12.315068493150685 x 100 = 1231.51%