The maximum possible loss of the trade according to the strategy, as well as the maximum percentage loss.
Let's look at how the value for the Drawdown column is calculated:
The minimum value to which the share price has decreased since the purchase is $332.58 on June 15, therefore the maximum possible loss in this transaction is $333.25 - $332.58=$0.67, for a percentage of (0.67/(333.25*1))*100% = 0.20%.