#### Solution for 21 is what percent of 107:

21:107*100 =

(21*100):107 =

2100:107 = 19.63

Now we have: 21 is what percent of 107 = 19.63

Question: 21 is what percent of 107?

Percentage solution with steps:

Step 1: We make the assumption that 107 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\%}={107}.

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

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

{100\%}={107}(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{107}{21}

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

\frac{x\%}{100\%}=\frac{21}{107}

\Rightarrow{x} = {19.63\%}

Therefore, {21} is {19.63\%} of {107}.

#### Solution for 107 is what percent of 21:

107:21*100 =

(107*100):21 =

10700:21 = 509.52

Now we have: 107 is what percent of 21 = 509.52

Question: 107 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\%}={107}.

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

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

{x\%}={107}(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}{107}

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

\frac{x\%}{100\%}=\frac{107}{21}

\Rightarrow{x} = {509.52\%}

Therefore, {107} is {509.52\%} of {21}.

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