12.2% is the change from 164 to 184
Calculation steps:
[( 184 - 164 ) ÷ 164] x 100 = 12.2%
Formula
Percentage change = [(184 - 164) / 164] x 100
Subtract the new number by the original number
184 - 164 = 20
20 ÷ 164 = 0.12195121951219512
0.12195121951219512 x 100 = 12.2%