Well 9,930 is a whole so it equals 100 percent. If we add another 100 percent you get 19,860 ( 9,930 plus 9,930) and since it is only 50 percent we add half of 100 percent which would be 4965 (9,930 divided by 2) and add it to the 100 percent because it was an increase by 50 percent. If you have any more questions I would be glad to help! Mark brainliest plz
