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Solution for 0.5 is what percent of 21:

0.5:21*100 =

(0.5*100):21 =

50:21 = 2.3809523809524

Now we have: 0.5 is what percent of 21 = 2.3809523809524

Question: 0.5 is what percent of 21?

Percentage solution with steps:

Step 1: We make the assumption that 21 is 100% since it is our output value.

Step 2: We next represent the value we seek with {x}.

Step 3: From step 1, it follows that {100\%}={21}.

Step 4: In the same vein, {x\%}={0.5}.

Step 5: This gives us a pair of simple equations:

{100\%}={21}(1).

{x\%}={0.5}(2).

Step 6: By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS
(left hand side) of both equations have the same unit (%); we have

\frac{100\%}{x\%}=\frac{21}{0.5}

Step 7: Taking the inverse (or reciprocal) of both sides yields

\frac{x\%}{100\%}=\frac{0.5}{21}

\Rightarrow{x} = {2.3809523809524\%}

Therefore, {0.5} is {2.3809523809524\%} of {21}.

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• 0.5 is what percent of 100 = 0.5

Solution for 21 is what percent of 0.5:

21:0.5*100 =

(21*100):0.5 =

2100:0.5 = 4200

Now we have: 21 is what percent of 0.5 = 4200

Question: 21 is what percent of 0.5?

Percentage solution with steps:

Step 1: We make the assumption that 0.5 is 100% since it is our output value.

Step 2: We next represent the value we seek with {x}.

Step 3: From step 1, it follows that {100\%}={0.5}.

Step 4: In the same vein, {x\%}={21}.

Step 5: This gives us a pair of simple equations:

{100\%}={0.5}(1).

{x\%}={21}(2).

Step 6: By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS
(left hand side) of both equations have the same unit (%); we have

\frac{100\%}{x\%}=\frac{0.5}{21}

Step 7: Taking the inverse (or reciprocal) of both sides yields

\frac{x\%}{100\%}=\frac{21}{0.5}

\Rightarrow{x} = {4200\%}

Therefore, {21} is {4200\%} of {0.5}.