Your G8 and sample loader price in the calculation sheet is already discounted (1,550,000 and 210,000).
Even with that discounted price, we are so far from the target cost/test of 66 THB.
The target cost/test cannot be achieved even with FOC instrument.
It is better if you could amend your calculation sheet and reflect your lowest possible offering price to customer (reduction in your margin).
After that, inform us exactly your requesting price from Tosoh (discount request form).