Chloe opens a retail store. Her sales during the first year are $ $900$ comma $000,$ of which $ $120$ comma $000$ has not been collected at$$ year$-$end. Her purchases are $ $550$ comma $000.$ She still owes $ $30$ comma $000$ to her$$ suppliers, and at$$ year$-$end she has $ $55$ comma $000$ of inventory on hand. She incurred operating expenses of $ $120$ comma $000.$ At$$ year$-$end she has not paid $ $5$ comma $000$ of the expenses