260% is the change from 180 to 648
Calculation steps:
[( 648 - 180 ) ÷ 180] x 100 = 260%
Formula
Percentage change = [(648 - 180) / 180] x 100
Subtract the new number by the original number
648 - 180 = 468
468 ÷ 180 = 2.6
2.6 x 100 = 260%
Example