This is annual interest!..."CALCULATIONS BASIS AND INTEREST PAYMENT: Based on 365 days and paid on a monthly basis."
So a 180 day CD pays $RD15,300 on a $RD340,000 investment, that's $RD2,550 monthly.
Central Bank of Dominican Republic
180 days 9%
365 days 11%
18 months 12%
24 months 13%
30 months 15%