Percentage Calculator: What is 30 percent of .4? = 0.12

30 percent *.4 =

(30:100)*.4 =

(30*.4):100 =

12:100 = 0.12

Now we have: 30 percent of .4 = 0.12

Question: What is 30 percent of .4?

Percentage solution with steps:

Step 1: Our output value is .4.

Step 2: We represent the unknown value with {x}.

Step 3: From step 1 above,{.4}={100\%}.

Step 4: Similarly, {x}={30\%}.

Step 5: This results in a pair of simple equations:

{.4}={100\%}(1).

{x}={30\%}(2).

Step 6: By dividing equation 1 by equation 2 and noting that both the RHS (right hand side) of both
equations have the same unit (%); we have

\frac{.4}{x}=\frac{100\%}{30\%}

Step 7: Again, the reciprocal of both sides gives

\frac{x}{.4}=\frac{30}{100}

\Rightarrow{x} = {0.12}

Therefore, {30\%} of {.4} is {0.12}

Percentage of

Difference

.4 percent *30 =

(.4:100)*30 =

(.4*30):100 =

12:100 = 0.12

Now we have: .4 percent of 30 = 0.12

Question: What is .4 percent of 30?

Percentage solution with steps:

Step 1: Our output value is 30.

Step 2: We represent the unknown value with {x}.

Step 3: From step 1 above,{30}={100\%}.

Step 4: Similarly, {x}={.4\%}.

Step 5: This results in a pair of simple equations:

{30}={100\%}(1).

{x}={.4\%}(2).

Step 6: By dividing equation 1 by equation 2 and noting that both the RHS (right hand side) of both
equations have the same unit (%); we have

\frac{30}{x}=\frac{100\%}{.4\%}

Step 7: Again, the reciprocal of both sides gives

\frac{x}{30}=\frac{.4}{100}

\Rightarrow{x} = {0.12}

Therefore, {.4\%} of {30} is {0.12}

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