Need a spreadsheet for computing commissions with multiple variables

My employer is looking for a spreadsheet to automatically calculate real estate commissions between himself(broker) and the agents on the team. Commission splits(see below) vary depending on the type of lead, # of transactions (sales), and resets yearly. Not sure if anyone has seen something like this. Any ideas would be greatly appreciated!

Commission Splits between Broker and Agent/# of Transactions at specific % rate

Agent Procured Lead:

70% to agent up to 10 trans.
80% to agent for 11+ trans.
*Transaction totals reset on anniversary of agent joining team.


Team Procured Lead:

55% to agent up to 10 trans.
60% to agent for 11-20 trans.
65% to agent for 21+ trans.
*Transaction totals reset on anniversary of agent joining team.

This is definitely possible, but before I can tackle it, you must change your post title to something more specific in order to comply with forum rule #1:
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Thank you - I should also have asked if you could post a sample workbook...sorry...

See if the attached will get what you need. I added a "helper" column to determine whether or not the sales date was prior to one year from the 1/6/2011 date + 1 year (ie 1/6/2012), then used pivot tables and VLOOKUP for commision %.