Table 2. Comparison of the average price of corn and soybean meal as animal feed between 2007-2016 in USA and Thailand (Price calculated based on currency exchange (1USD = 33BTH).

Type of concentrate	Price per ton in USA (USD)	Price per ton in Thailand (USD)	Price comparison (Percentage of Thai/USA price)
Corn	109.15	252.12	230.9%
Soybean meal	362.00	434.84	120.12%