Hi Everyone I have a PD1 certification voucher but I'm already PD1 certified. Is there any way that I can use this voucher for admin exam??

I have a currency field Total Value, based on which we are updating a picklist field called as Tech Total Value (Displays range of value). For ex- If Total Value is 2000000 $, Tech Total Value picklist will populate as  1m$-5m$.
when I'm selecting Currency field(CurrencyISOCode) other than USD say INR, then it reflect in Total Value field as INR 1000000 (USD 13126) automatically.What I want is, that Tech Total Value picklist should also be updated wrt current USD value not INR. For ex. in this case Tech Total Value picklist value should be updated to 0$-1m$ considering USD value as 13126