what 2.1% of 1,500

Civonamzuk's Statement.

(1,500/100)*2.1% = 31.5

This statement is not correct Civonamzuk    

2.1%=2.1/100 = 0.021

so

(1,500/100)*2.1% = (1,500/100)*0.021 

$$\left({\frac{{\mathtt{1\,500}}}{{\mathtt{100}}}}\right){\mathtt{\,\times\,}}{\mathtt{0.021}} = {\frac{{\mathtt{63}}}{{\mathtt{200}}}} = {\mathtt{0.315}}$$

2.1% of 1,500

=2.1%*1,500

=2.1%*1.5

=63/2000

=0.0315

Not quite Eloise     

2.1% of 1,500   

$$\frac{2.1}{100}*1500$$     

=2.1*15      

=31.5

You should also do a sensibleness check

1% 0f 1500 is 15

2% of 1500 is 30

2.1% must be a bit more than that    

what 2.1% of 1,500

(1,500/100)*2.1 = 31.5

Is it better now?