You are shopping for a new Lawn Mower at MowersRUs. The mower you intend to purchase has a sticker price of $300. The sales rep at MowersRUs has just informed you that you have the following two options for paying for the mower:

Option 1: Pay for the mower with cash today and get a 10% discount off the sticker price! So under this option you would pay $300(1-0.1) = $270 today.

Option 2 - Zero Percent Financing!: Under this option, you would make 30 monthly (beginning-of-month) payments of $10 each, with the first payment occurring today.

What is the Effective Annual Interest Rate of Option 2?