the formula should follow like this:
income_from_route_between_A_and_B =
pop *
speed *
trade *
provinceB *
governorB *
routeswhere:
pop = min ( populationA, populationB ) / 100
speed = 4 //for blitz 4x server)
trade = ( 1 + trade/50 ) //university research(factor 1 - 1.2)
provinceB = province bonus to trade potential 10-20% if any (factor 1.1 - 1.2)
governorB = from master of trade skill - up to 40% (factor 1 - 1.4) *
routes = routes/10 - either imperial or trade or whatever...(factor 0.1 - 1)
which gives you roughly 100% max bonus to trade potential generated by your population with 100% efficiency of trade/imperial routes
*some provinces grant 50% bonus to governor's master of trade skill however it doesnt seem to be working.
** looks like partial results are (all) rounded
The descriptionexplains how the trade potential works, for more detailed information like the one you asked you can contact community managers or support@imperialsupport.org.
dear angela, i would understand that manual only explains basic mechanics while some nuances are left out to make the manual shorter, straightforwad and more readable...
if that was the case while it is the exact opposite. manual is full of partial and complementary references to trade potential but the one and most important - how basic trade potential is calculated from current population - is missing!!!
one and single piece of information that actually gives the whole formula above a point of reference for every other factor.