Assigning a value to a Google Analytics Goal allows you to do which of the following?
- Analyze the conversion funnel on your website.
- Track actual revenue from your conversions
- Compare goal conversions and measure changes and improvements to your site
- Track real-time revenue for your business
Assigning a monetary value to a goal gives you a way to compare conversions and measure changes and improvements to your site or app. All goal types except Smart Goals let you assign a value during the setup process. There are special considerations when setting up an Event goal or a goal that involves Ecommerce Tracking.
Read more here: https://support.google.com/analytics/answer/1032415?hl=en