MathCAD Math is wrong?

So I'm trying to do some simple math and it's not agreeing with my calculations. I'm doing some simple multiplication and division and it's giving me a negative result. I'm wondering if the unit conversions aren't quite right? I'm attaching the file so if anyone can offer some input, I would appreciate it. I have two equations side by side that show what MathCAD is giving me and what the simple multiplication and division SHOULD give me.