You can sell your games with personal license. If you have a registered business, you need to subscribe the business license.
It says you can make money with any paid plan. (Scroll down to Monetisation tab: https://www.construct.net/tr/make-games/buy-construct-3)
There are two types of business license:
STARTUP BUSINESS LICENSE
Only business where annual revenue is or is forecast to be less than $50,000 USD* and net assets are less than $100,000 USD* are permitted to purchase this license. If you exceed either of those limits, you must purchase the Standard Business License.
STANDARD BUSINESS LICENSE
For businesses and organisation where annual revenue is greater than or forecast to exceed $50,000 USD* or net assets are valued at more than $100,000 USD*.
https://www.construct.net/tr/make-games ... 3/business