Rental Property Calculator

[Beau Dalton]

Hello all - i am a newbie here but had a quick question regarding the rental property calculator. I watched David Greene's webinar last week titled "How to make 2022 your best year ever". In that webinar, he walked through how to use the rental property calculator. In the example he used a property where the gross monthly income for comparable properties was $725/mo. When he entered the gross monthly income to the rental property gross monthly income, he multiplied the $725 by 4 which showed grossly month income of $2,900. Why did he multiply by 4? I am not following this method if the comp showed monthly income of $725. Shouldn't the gross monthly income just be $725?