afterward , the domain negotiated with the korean side for two years , and in may 1699 , they agreed that the domain should pay additional 27% of the price besides to the stated price when the domain would pay with genroku chogin . 対馬藩の朝鮮側との2年越しの交渉の末、元禄12年（1699年）5月に、元禄銀による支払いは、慶長銀の2割7分増しで決済することで合意がなされた。
considering the amount of contained silver , 25% of the stated price was a proper additional amount , but the reason why this agreement was made was that the tsushima domain received a report from the korean side in which they found out the percentage of silver content did not meet the defined amount after their analysis of the grade . 含有銀量で換算すれば2割5分増しであるが、これは元禄銀の品位を分析した結果、含有率が規定量に満たないなどの申し出が朝鮮側からあったなどのやり取りによるものであった。
