Half of it
You save 15 dollars.
50% of $15 = 50% * 15 = 0.5 * 15 = $7.50
40 percent of 50 = $20
$ 7.50
70% of 50 is 35 and so 50-35 = 15 dollars
50% of $30 is $15. The easiest way to do this is to just divide 30 by two, since 50% is half off.
50*(115%/100%) = 50*1.15 = 57.5
40 dollars
How much is 50 prevent off 68 dollars
50$
50 is 100*50/15 percent of 15. That is 333.33... recurring %.50 is 100*50/15 percent of 15. That is 333.33... recurring %.50 is 100*50/15 percent of 15. That is 333.33... recurring %.50 is 100*50/15 percent of 15. That is 333.33... recurring %.
80