I think a good measure of how accurate your times are is to fill out an application on Airline Apps. They allow you one free application. Pay careful attention to exactly how they want you to break down your flight time. If I recall correctly they want times logged as PIC/Dual logged as dual only, and time as dual given as only that, not PIC among other things. If the broken down numbers match what's in your logbook total time if you add them the way they do then you are in good shape.

I put my decimals into the form as I came up with them in my math and let airline apps round them off. I think I ended up with 1 hour less in my airline apps then I had in my log book which was just fine with me. I went into all 3 of my airline interviews feeling very confident in my numbers and I was offered 3 jobs.

If you can say with a great, great deal of certainty that the numbers airline apps cooks up are good, you would be confident in applying to their member airlines.