49 dollars off, leaving 21
$39.20
$36.75
$196 off. $49 on.
That would be $49 off the $70.
30-21=9 dollars
You would reduce it by 4.90 leaving 44.10
40% of 49 dollars = 49*40/100 = 19.6 dollars.
100*49/70 = 70%
30% of $70 is $21. 70 - 21 = 49
You multiply 75 by .3 which equals $22.50 $49
20 percent off of 245 dollars = 19620% off of $245= 20% discount applied to $245= $245 - (20% * $245)= $245 - (0.20 * $245)= $245 - 49= 196