Merchant Discount Rate (MDR) is a fee amount by percentage that KBank deduct on each transaction amount as agreed rate
"For example:Amount: 1,000,000 VND
MDR (2%): 20,000 VND
VAT (10%): 2,000 VND"
So, KBank will credit (money transfer) to merchant = 978,000 VND [1,000,000-(20,000+2,000)]