số lượng

giá

tổng giá

1

$0.2100

$0.2100

10

$0.1800

$1.8000

25

$0.1650

$4.1250

100

$0.1350

$13.5000

250

$0.1250

$31.2500

500

$0.1050

$52.5000

1000

$0.0800

$80.0000

3000

$0.0750

$225.0000

6000

$0.0700

$420.0000

15000

$0.0650

$975.0000

30000

$0.0600

$1,800.0000

75000

$0.0600

$4,500.0000