840.51% is the change from 79 to 743
Calculation steps:
[( 743 - 79 ) ÷ 79] x 100 = 840.51%
Formula
Percentage change = [(743 - 79) / 79] x 100
Subtract the new number by the original number
743 - 79 = 664
664 ÷ 79 = 8.405063291139241
8.405063291139241 x 100 = 840.51%