30% off $420 = $420 - (0.3 x $420) = 294
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30% off of $600 = $600 - (0.30 x $600) = $420
What is 30% off 69 dollars
what is 27.00-30%
30% off of 400 dollars = 70% of 400 dollars = 400*70/100 = 280 dollars
30% off 372 dollars = 70% of 372 dollars = 372*70/100 = 260.40 dollars