$15.84
40 percent off 198 dollars = $118.840% off of $198= 40% discount applied to $198= $198 - (40% * $198)= $198 - (0.40 * $198)= $198 - $79.2= $118.8
$19.80
198 - 30% = 198 x (1 - (30/100)) = 198 x 0.7 = $138.60.
That is 60 dollars.
If you take 80% of 80 dollars away, you are left with 16 dollars.
330% of 60 dollars = 60*330/100 = 198 330% of 60 dollars = 60*330/100 = 198 330% of 60 dollars = 60*330/100 = 198 330% of 60 dollars = 60*330/100 = 198
"30 percent of 80 dollars" is expressed as "30% times 80 dollars". Then: 0.3 * $80 = $24
$64
10% of 80 dollars = 8 dollars
80% of 15 dollars = 15*80/100 = 12 dollars.
80% of 5.00 dollars = 5.00*80/100 = 4.00 dollars.
80% of 300 dollars = 80% * 300 = 0.8 * 300 = 240 dollars