Bankstown Limited is involved in a highly successful plastics manufacturing business. He started a project to design a more efficient extrusion system for plastic pipes. 

The following expenses were incurred: 

September: researcher salaries $30,000; 

October: research materials $40 000; 

November: redevelopment of extrusion plant $250,000; 

December: final fixes at extrusion plant $25,000. 

Calculate the amount that will be recovered by Bankstown Limited at the end of the 31 December fiscal year.