75 percent off 150

75% off 150 is 37.5

150 minus 75 percent off is 37.5

The discount itself is 112.5: 150 × 75 ÷ 100 = 112.5. Taking it off 150 leaves 37.5.

Only approximately: 37.5 ÷ 0.25 = 150. The discount is rounded to the cent, so every price from 149.99 to 150.02 (in whole cents) gives the same 37.5; the paid price alone cannot tell them apart.