The amount of the disability basic pension is the amount obtained by multiplying 780,900 yen by the revision rate (if a fraction of less than 50 yen arises in that amount, it is to be rounded down, and if a fraction of 50 yen or more but less than 100 yen arises, it is to be rounded up to 100 yen).
障害基礎年金の額は、七十八万九百円に改定率を乗じて得た額（その額に五十円未満の端数が生じたときは、これを切り捨て、五十円以上百円未満の端数が生じたときは、これを百円に切り上げるものとする。）とする。
The amount of the disability basic pension paid to a person whose degree of disability falls under Grade 1 of the disability grade is, notwithstanding the provisions of the preceding paragraph, the amount equivalent to 125 percent of the amount specified in that paragraph.
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Amount of the Pension
The amount of the disability basic pension is the amount obtained by multiplying 780,900 yen by the revision rate…
障害基礎年金の額は、七十八万九百円に改定率を乗じて得た額（その額に五十円未満の端数が生じたときは、これを切り捨て、五十円以上百円未満の端数が生じたときは、これを百円に切り上げるものとする。）とする。
Open this provisionrevision ratemachine translation
「改定率」
The rate, set at 1 for fiscal 2004 and revised each year under Articles 27-2 to 27-5 in line with prices and wages (with an adjustment during the adjustment period (調整期間)), by which the base amounts of pensions under this Act — such as 780,900 yen for the old-age basic pension (老齢基礎年金) — are multiplied.
Defined inArticle 27, paragraph (1)
disability grademachine translation
「障害等級」
The grade of disability under Article 30, paragraph (2): grade 1 or grade 2, from the more severe, with the state of disability for each set by Cabinet Order (政令).
Short name set inArticle 30-2, paragraph (1)