4 of 2800 July 8, 2019 16 32 64 128 4 of 28000 4 percent of 28000 1 4 of 2800 3 4 of 2800 4 5 of 2800 4 7 of 2800 4 percent of 2800 1 4 of 28000 3 4 of 28000 4 5 of 28000 4 increase of 28000 4 7 of 28000