450 - 20% = 360
547 - 450 = 97
The answer is 225.
450.
225
450
minus 20
22.5
-20 negative 20 minus 20
$450 minus 30% is 315
100% = 450 1% = 450/100 20% = (450/100) x 20 = 9000/100 = $90
The question is not precise: ten percent of what? Let us assume the question means 10% of 450. Answer = 450 - 10%*450 = 90%*450 = 0.9*450 = 405.