320% is the change from 180 to 756
Calculation steps:
[( 756 - 180 ) ÷ 180] x 100 = 320%
Formula
Percentage change = [(756 - 180) / 180] x 100
Subtract the new number by the original number
756 - 180 = 576
576 ÷ 180 = 3.2
3.2 x 100 = 320%
Example