647.5% is the change from 80 to 598
Calculation steps:
[( 598 - 80 ) ÷ 80] x 100 = 647.5%
Formula
Percentage change = [(598 - 80) / 80] x 100
Subtract the new number by the original number
598 - 80 = 518
518 ÷ 80 = 6.475
6.475 x 100 = 647.5%
Example