$\frac{33}{100}$ = $33\%$

Note that $\%$ means per 100.

Multiplying by 100,

0.008 $\times$ 100

 = 0.8 $\%$

Alternate method,

0.008

= $\frac{0.8}{100}$

= 0.8 $\%$

Converting the denominator to 100 by mutiplying with 4,

$=\frac{7}{25}\times \frac{4}{4}$     (As, 25 $\times$ 4 = 100)

= $\frac{28}{100}$

= $28\%$ 

5$\%$ of ₹ 100

= $\frac{5}{100}\times 100$
= ₹5

37.5 $\%$ = 
(Shifting two decimal places , we have)

= 0.375

Number of eggs = 100

$\%$ of rotten eggs = 10

Number of rotten eggs
= $\frac{10}{100}\times 100$
= 10

$\therefore$ 10 eggs are rotten.

8 $\%$ of 600

= $\frac{8}{100}\times 600$
= 48

1 hour = 60 minutes
$\Rightarrow$ 15 minutes = $\frac{15}{60}$ hour
$\Rightarrow$ $\frac{15}{60}\times 100$
$=\frac{1}{4}\times 100$
= 25 %

235 % = $\frac{235}{100}$
              
Shifting two decimal places we get