77.5%.. If you multiply BOTH figures b6 2.5, you get 77.5/100
40 percent of 31 is 12.4
31/40
40% = 2/5
77.5% (31/40)*100 = 77.5%
62%
57.5%
31/40
77.5% = 31/40
77.5% = 31/40
35 out of 40 = 35 / 40 = 0.875Converting decimal to a percentage: 0.875 * 100 = 87.5%
31 percent
2/5