30% of 400 is 120 and so 400-120 = 280 pounds
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20% of 30 pounds is calculated by taking 0.20 times 30 which equals 6. So 20 percent of 30 pounds is 6 pounds.
the number is 120 and so its 400% of 30
30 percent off of $30 would be $9 off.
280 To find percentages, just take 30% and multiple it by $400: .30 x 400 = 120 Then take 120 and subtract it from 400: 400-120= 280
20 percent off of 30 is 6.