I think this is a pointless figure for a number of reasons.

1. Their stock is where it was last Friday.

2. We don't know how much the stock dropping is due to the outrage or due to whatever else. 1-3% fluctuations in stock, even intra-day are common. Delta airlines today for example lost 2.2% whereas UAL lost 1%. And the whole market has been down this week.

3. When Amazon loses 1% of its stock, it loses 4 billion in "value".

4. Loss in market cap is not loss in value to United. Its a loss to shareholders collectively.

5. The short term losses don't mean anything if it rebounds.