The Base Currency of your setup in STAAH is usually in the local currency of your country.
In some cases the setup in STAAH maybe based on USD or GBP for example and the channel may be showing local currency. In this case, multipliers are setup in the mapping to push out the conversion accordingly. It is important to understand what currency the channels (OTAs) want to receive and what currency your STAAH setup is based on.
If there appears to be a discrepancy in rates of currency, please get in touch with your local Partner Service team and they will assist.