The accessories buyer is buying an assortment of handbags for a Spring Sale event. The following items are what the buyer has purchased:

$1450$ tote bags at $$40\mathrm{.}50$ cost to retail for $$109\mathrm{.}99$

$1750$ crossbody bags at $$38\mathrm{.}40$ cost to retail for $$89\mathrm{.}99$

Calculate the CMU $\%$ for the purchase.