#### Solution for 220 is what percent of 1215:

220:1215*100 =

(220*100):1215 =

22000:1215 = 18.11

Now we have: 220 is what percent of 1215 = 18.11

Question: 220 is what percent of 1215?

Percentage solution with steps:

Step 1: We make the assumption that 1215 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\%}={1215}.

Step 4: In the same vein, {x\%}={220}.

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

{100\%}={1215}(1).

{x\%}={220}(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{1215}{220}

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

\frac{x\%}{100\%}=\frac{220}{1215}

\Rightarrow{x} = {18.11\%}

Therefore, {220} is {18.11\%} of {1215}.

#### Solution for 1215 is what percent of 220:

1215:220*100 =

(1215*100):220 =

121500:220 = 552.27

Now we have: 1215 is what percent of 220 = 552.27

Question: 1215 is what percent of 220?

Percentage solution with steps:

Step 1: We make the assumption that 220 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\%}={220}.

Step 4: In the same vein, {x\%}={1215}.

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

{100\%}={220}(1).

{x\%}={1215}(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{220}{1215}

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

\frac{x\%}{100\%}=\frac{1215}{220}

\Rightarrow{x} = {552.27\%}

Therefore, {1215} is {552.27\%} of {220}.

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