Percentage Calculator
7.5 is what percent of 21?
Solution for 7.5 is what percent of 21:
7.5:21*100 =
(7.5*100):21 =
750:21 = 35.714285714286
Now we have: 7.5 is what percent of 21 = 35.714285714286
Question: 7.5 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\%}={7.5}.
Step 5: This gives us a pair of simple equations:
{100\%}={21}(1).
{x\%}={7.5}(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}{7.5}
Step 7: Taking the inverse (or reciprocal) of both sides yields
\frac{x\%}{100\%}=\frac{7.5}{21}
\Rightarrow{x} = {35.714285714286\%}
Therefore, {7.5} is {35.714285714286\%} of {21}.
Solution for 21 is what percent of 7.5:
21:7.5*100 =
(21*100):7.5 =
2100:7.5 = 280
Now we have: 21 is what percent of 7.5 = 280
Question: 21 is what percent of 7.5?
Percentage solution with steps:
Step 1: We make the assumption that 7.5 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\%}={7.5}.
Step 4: In the same vein, {x\%}={21}.
Step 5: This gives us a pair of simple equations:
{100\%}={7.5}(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{7.5}{21}
Step 7: Taking the inverse (or reciprocal) of both sides yields
\frac{x\%}{100\%}=\frac{21}{7.5}
\Rightarrow{x} = {280\%}
Therefore, {21} is {280\%} of {7.5}.