Therefore, as for the decrease in scope of work, ABB Limited deducts the preventive maintenance fee. Originally, term of payment according to the contract is 4 installments in year 2016 which is THB280,000 per one installment (VAT exclude) (ABB Limited has already once invoice). Up to now, one installment was made for THB 280,000 (VAT excluded). Thus, ABB will adjust for the rest of the 3 installments to be THB150,000 per one installment. (VAT excluded). So, The total fee in the contract for year 2559 is THB 730,000 (VAT excluded).