11.11% is the change from 180 to 200
Calculation steps:
[( 200 - 180 ) ÷ 180] x 100 = 11.11%
Formula
Percentage change = [(200 - 180) / 180] x 100
Subtract the new number by the original number
200 - 180 = 20
20 ÷ 180 = 0.1111111111111111
0.1111111111111111 x 100 = 11.11%