No, sorry - my fault - I should have placed parentheses.

The formula to calculate the number of shares to buy/sell is
Number of Shares = (Equity * Risk%) / ( ATR3 * ATR multiplier)
in my example, this will be
( $ 10,000.00 * 0.35% ) / ( 2.1963 * 1.2 ) = 13.27991
The result of this calculation is rounded downwards.
The stop-loss is placed at entry-price - ( ATR3 * ATR multiplier).
Let's assume that the entry price is $ 48.3930 then the initial stop-loss should be placed at 45.7574.
If the trade completely goes wrong and the stop-loss is hit, the loss shall be 13 * ( 48.3930 - 45.7574) = $ 34.2628

PdP