流動負債=3,000,000/2.5=1,200,000
期末存貨=(2.5-1.8)*1,200,000=840,000
平均存貨=(500,000+840,000)/2=670,000
銷貨成本=670,000*5=3,350,000
銷貨收入=3,350,000/0.8=4,187,500
銷貨毛利=4,187,500-3,350,000=837,500
全年度平均應收帳款=4,187,500/(360/90)=1,046,875
故推得期末應收帳款=1,256,250
現金=3,000,000-840,000-1,256,250=903,750