noun
seventy percent; 70%
Used to express a proportion of seven-tenths, often in statistics, grades, or discounts.
この試験の合格率は七割です。
The pass rate for this exam is seventy percent.
商品が七割引きで売られていた。
The product was sold at a 70% discount.
Means 'eighty percent', while 七割 is 'seventy percent'.
Also means 'seven-tenths' but is less common in modern percentage contexts; 七割 is the standard for '70%'.
Compound of 七 (なな, 'seven') and 割 (わり, 'tenth, proportion'). The reading なな is the native Japanese numeral for seven, and わり derives from 割る (わる, 'to divide').