1257.53% is the change from 73 to 991
Calculation steps:
[( 991 - 73 ) ÷ 73] x 100 = 1257.53%
Formula
Percentage change = [(991 - 73) / 73] x 100
Subtract the new number by the original number
991 - 73 = 918
918 ÷ 73 = 12.575342465753424
12.575342465753424 x 100 = 1257.53%