0.56% is the change from 180 to 181
Calculation steps:
[( 181 - 180 ) ÷ 180] x 100 = 0.56%
Formula
Percentage change = [(181 - 180) / 180] x 100
Subtract the new number by the original number
181 - 180 = 1
1 ÷ 180 = 0.005555555555555556
0.005555555555555556 x 100 = 0.56%