That's great, and really really useful and easy.
Would be awesome to see it combined with in-game stats rather than the store ones.
This will always be a subject of discussion, in-game test data will never be exact science,
the store data isn't either. (don't know where Neoqb got 'em)
The weathermodel will be a deciding variable in the equation, test flight data will be influenced by it.
Considering this we can only conclude (i.m.h.o.) that the store data is as valid as any data obtained in whatever setting.
Normally, powerloading is weight/power (lower numbers are better). It would also make sense to use units from the same measurement system, i.e. kg/(kilo)watt, lb/hp, etc.
Quite stunning to notice that the D.Va has slightly better powerloading than the Camel. You wouldn't know from in-game performance.
If you take a Camel up with 50% fuel and a DVa with 30%, i'll guess you will be surprised
That number is calculated with max t.o. weight.