Use the table below to answer the following question$($s$).$

Fiberia Accessories, a clothing retailer, is planning to introduce a new line of sweaters as part of the winter collection for $$65$ with an inventory of $1500.$ The main selling season is $60$ days between November and December. The store then sells the remaining units in a clearance sale at $65$ percent discount. Out of the $60$ main retail days, Fiberia sells the sweaters at full retail price for only $45$ days, while giving a discount of $25$ percent for the remaining $15$ days. The demand functions $a,$ and $b$ are given as $79\mathrm{.}5$ and $1\mathrm{.}1$ respectively.

Calculate the total number of units sold during the full retail sales period.