The rates will vary depending on the purchased accounts count.
Single account pricing:
1 month — US $70
3 months — US $200
6 months — US $350
1 year — US $650
Discounted Multi-User Plans (price per user):
2–4 users
1 month — US $65
3 months — US $170
6 months — US $350
1 year — US $600
5–9 users
1 month — US $60
3 months — US $160
6 months — US $330
1 year — US $550
10–19 users
1 month — US $55
3 months — US $150
6 months — US $300
1 year — US $500
*** One account can be used on one computer only