60 dollars
40% off = 60% 60% of 21 dollars = 21*60/100 = 12.60 dollars
60% off of 148 dollars = 40% of 148 dollars = 148*40/100 dollars = 59.2 dollars
40% off 7 dollars = 60% of 7 dollars = 7*60/100 = 4.20 dollars.
40% off 37 dollars = 60% of 37 dollars = 37*60/100 = 22.20 dollars
60 dollars
60 dollars
40% off = 60% 60% of 21 dollars = 21*60/100 = 12.60 dollars
60% off of 148 dollars = 40% of 148 dollars = 148*40/100 dollars = 59.2 dollars
40% off 7 dollars = 60% of 7 dollars = 7*60/100 = 4.20 dollars.
40% off 37 dollars = 60% of 37 dollars = 37*60/100 = 22.20 dollars
50 dollars - 40% = 60% [left] of 50 dollars = 50*60/100 = 30 dollars.
Well, isn't that a happy little question! If we take 40 percent off 14 dollars, we simply multiply 14 by 0.40 to find the discount amount. That gives us a discount of 5.60 dollars, leaving us with a final price of 8.40 dollars. Just remember, mistakes are just happy accidents in the world of math!
20 dollars are 100 percent. You want 40 percent off, that means you want 60 percent. 20/100 = 0.2 is 1 percent that value times 60 gives the wanted 60 percent. You have to pay only 0.2 times 60 = 12 dollars instead of 20 dollars.
40% off 171 dollars = 60% [left] of 171 dollars = 171*60/100 = 102.6 dollars
60% off of 166 dollars = 40% left of 166 dollars = 166*40/100 = 66.40 dollars.
40% off of 20 dollars = 60% of 20 dollars (100 - 40 = 60) = 20*60/100 = 12 dollars