You can write or publish it as many ways as you want; it doesn't add any more value. What I was asking was how was the data measured, recorded, stored, and manipulated. Errors in any of those could cause errors in the displayed average power and work. In your case, it's clear there's an error in the calculated work. Without examining the data train, there's no way of knowing for sure where that's coming from. You might want to start by checking total work against the product of average power and time to see how many are off.