In this website, please see RESOURCE. You find Form 3508EZ,3508S and PPP forgiveness calculation worksheet. This excel worksheet help you to calculate Line1 to 8 on Form 3508EZ. Even though your PPP loan amount is less than $50k and use Form 3508S, I recommend to prepare this worksheet and gather receipts and cancelled checks just in case for Audit.
I am sorry I did not create Video for PPP preparation explanation in English version, but you can find a lot in YouTube! I hope this excel is helpful for you!