JC Penney normally sells its mattresses for $1,699 but is offering an online special at half price. In addition, some online customers use online coupons for an additional 15% off the special sale price The mattress costs S500 and the cost to modify the website to handle the discounts work out to an average $10 per mattress Inventory investment is 3 months of supply Assuming a cost of capital of 12%, what is the pocket margin for this sale offer? (use 2 decimals