Wrong count the amount of shipping in the currencies

[sysnet.by]

Configuration:

1 Euro EUR € 0.763359
2 Dollar USD $ 1
4 BYR BYR rub. 3100

Default currency - the dollar

Prices recalculates correctly

However, when choosing a product to your cart
delivery cost in dollars shows a right and not in rubles, namely

Area / weight range 0 $ to 20 $ 20 $ to 58 $ 58 $ to 1000 $
Clean Water - Minsk $ 4 $ 2 $ 1

That is, in rubles always takes the rightmost column for each value of the goods

An example of an error on the example of the goods -

http://aquafilter.sysnet.by/category.php?id_category=33


Where to edit, where to begin, thanks for any help.

and



After the research was to identify the dependence pattern -
incorrect calculation will be for those currencies, exchange rate which is greater than 1

And yet at the tips to the field is a phrase.
"The exchange rate in relation to your currency by default (eg 1 €) for that currency. For example, if the currency is the default - the euro and the currency - the U.S., enter " 1.52 "1 € = $ 1.38 "


Where does the 1.52 ????????? what division?


sorry for bad english ......