I noticed this today while doing checking some totals for a project. It seems there is definitely something not right. I haven't seen this before. What is al

I noticed this today while doing checking some totals for a project. It seems there is definitely something not right. I haven't seen this before. What is also interesting is if you enter the same numbers manually into the on-screen calculator it will give you a different answer of: 7 vs 6.99999999997 However if you update it and search for https://www.google.com/search?q=259680.68+-+37.98+-+259635 https://www.google.com/search?q=259680.68+-+37.98+-+259635 and then enter the same numbers you get 7.70000000001 vs 7.69999999998 Any ideas on what is happening?