Hubtown limited ordered to buy $500$ units of inventory from Skipper Limited on January $23,2017.$

The inventories were delivered for credit on February $17,$ subject to a $3\%$ discount if Skipper limited receive payment by March $17.$ Each unit was priced Rs $53.$ However, the Skipper limited received the payment from the Hubtown on March $13.$ On June $16,$ Hubtown limited retuned $30$ units of inventory to Skipper limited for a full cash. Calculate the net sales of the Skipper Limited for the period?