số lượng

giá

tổng giá

1

$0.5250

$0.5250

10

$0.4450

$4.4500

25

$0.4250

$10.6250

50

$0.4150

$20.7500

100

$0.4000

$40.0000

250

$0.3600

$90.0000

500

$0.3250

$162.5000

1000

$0.2900

$290.0000

3000

$0.2650

$795.0000

6000

$0.2550

$1,530.0000

9000

$0.2400

$2,160.0000

15000

$0.2350

$3,525.0000