12 : ǡ . 12 . ( ) ȡ ϡ : * * ̡ 27/1428 28/1429 29 /1430 . * 70% 60% . * ϡ - "" - , , ڡ . * , , . * ɡ 12 ɡ . * . * . * : 1) (50% ) . 2) (50% ) . 3) . * . * (). * . * : -90% - . -80% 90% - . - 65% 80% - . - 65% - .