# Need AFL for this formula

#### Neel30

##### New Member
Here is the formula i want in form of AFL... Plz help me out!

(upper BB - lower BB/ATR(14))*100

If there is already an afl for this, plz send a link.

thank you!

#### asnavale

##### Well-Known Member
Please check the pranthesis (Brackets) are in proper place. I think you want to divide the difference between Upper BB and Lower BB by ATR. The formula you posted subtracts the ratio of lower BB and ATR from Upper BB. There is a vast difference in the results.

-Anant