$500.
If you increase something by 400% then you are making it 5 times larger.
So if $100 is increased by 400% this equals $100 times 5 = $500.
In terms of the easiest steps possible to understand the principle here, you could also work this out by:
*finding out what 100% of the value is.
*multiplying this by 4 (as we have 400%)
*adding this to the original amount (as we are increasing by 400%)
100% of $100 = $100
$100 * 4 = $400
$400 + $100 = $500
30% of 400 dollars = 400 dollars * 30/100 = 120 dollars.
400 dollars increased by 300% results in 1,600 dollars.
400 percent increased
400 x 0.2 = 80 dollars 400 - 80 = 320 dollars
20% of 400 $ = 80 $. Here's how! 20% means 20/100 = 0.2 of means Product ie; Multiplication. Therefore, 20% of 400 $ = 0.2 * 400 $ = 80 $.
((400 - 200) / 400) x 200 = 100 Therefore, the percentage increase is 100 percent.
30% of 400 dollars = 400 dollars * 30/100 = 120 dollars.
55% of 400 dollars = 400*55/100 = 220 dollars
400 dollars increased by 300% results in 1,600 dollars.
400% increase.
Percent means "out of 100" → 9 % of $400 = 9/100 x $400 = $36
30% off of 400 dollars = 70% of 400 dollars = 400*70/100 = 280 dollars
100
$4. one percent = 1/100 hence $400 x 0.01 = $4
400 percent increased
75 percent of 400 dollars is 300 dollars.
$400 - 30% = 400 x (1 - (30/100)) = 400 x 0.7 = 280 dollars.