20.77% is the change from 183 to 221
Calculation steps:
[( 221 - 183 ) ÷ 183] x 100 = 20.77%
Formula
Percentage change = [(221 - 183) / 183] x 100
Subtract the new number by the original number
221 - 183 = 38
38 ÷ 183 = 0.20765027322404372
0.20765027322404372 x 100 = 20.77%