544.3% is the change from 79 to 509
Calculation steps:
[( 509 - 79 ) ÷ 79] x 100 = 544.3%
Formula
Percentage change = [(509 - 79) / 79] x 100
Subtract the new number by the original number
509 - 79 = 430
430 ÷ 79 = 5.443037974683544
5.443037974683544 x 100 = 544.3%