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Solution for 243 is what percent of 21:

243:21*100 =

(243*100):21 =

24300:21 = 1157.14

Now we have: 243 is what percent of 21 = 1157.14

Question: 243 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\%}={243}.

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

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

{x\%}={243}(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}{243}

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

\frac{x\%}{100\%}=\frac{243}{21}

\Rightarrow{x} = {1157.14\%}

Therefore, {243} is {1157.14\%} of {21}.

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• 243 is what percent of 30 = 810
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Solution for 21 is what percent of 243:

21:243*100 =

(21*100):243 =

2100:243 = 8.64

Now we have: 21 is what percent of 243 = 8.64

Question: 21 is what percent of 243?

Percentage solution with steps:

Step 1: We make the assumption that 243 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\%}={243}.

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

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

{100\%}={243}(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{243}{21}

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

\frac{x\%}{100\%}=\frac{21}{243}

\Rightarrow{x} = {8.64\%}

Therefore, {21} is {8.64\%} of {243}.