748.1% is the change from 79 to 670
Calculation steps:
[( 670 - 79 ) ÷ 79] x 100 = 748.1%
Formula
Percentage change = [(670 - 79) / 79] x 100
Subtract the new number by the original number
670 - 79 = 591
591 ÷ 79 = 7.481012658227848
7.481012658227848 x 100 = 748.1%