G Suite have just announced that they are rising their prices by 20%. This makes their equivalent plans more expensive than Office365 even without having to pay for Outlook, Word Excel if you want to use them as well. Plus with Office365 you get extra features such as Planner, Teams, MileIQ, Bookings, Invoicing. There is more information here https://mspoweruser.com/google-raises-g-suite-prices-by-20-percent/
If you would like to find out how much moving to Office365 can save you and what extra features you will get please get in contact.