์–ด์ œ ์ƒ์ƒ์œผ๋กœ ํ˜„๋ฌผ ์ •๋ฆฌํ•˜๊ณ  10๋ฐฐ์ˆ์ณค๋Š”๋ฐ -70%์ž„