#### Solution for 90 is what percent of 391:

90:391*100 =

(90*100):391 =

9000:391 = 23.02

Now we have: 90 is what percent of 391 = 23.02

Question: 90 is what percent of 391?

Percentage solution with steps:

Step 1: We make the assumption that 391 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\%}={391}.

Step 4: In the same vein, {x\%}={90}.

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

{100\%}={391}(1).

{x\%}={90}(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{391}{90}

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

\frac{x\%}{100\%}=\frac{90}{391}

\Rightarrow{x} = {23.02\%}

Therefore, {90} is {23.02\%} of {391}.

#### Solution for 391 is what percent of 90:

391:90*100 =

(391*100):90 =

39100:90 = 434.44

Now we have: 391 is what percent of 90 = 434.44

Question: 391 is what percent of 90?

Percentage solution with steps:

Step 1: We make the assumption that 90 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\%}={90}.

Step 4: In the same vein, {x\%}={391}.

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

{100\%}={90}(1).

{x\%}={391}(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{90}{391}

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

\frac{x\%}{100\%}=\frac{391}{90}

\Rightarrow{x} = {434.44\%}

Therefore, {391} is {434.44\%} of {90}.

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