At a supermarket a chocolate sells for $3, the profit margin of the supermarket is 3%, what is the amount that the manufacturer gets per chocolate?...

Let the amount that the manufacturer gets per chocolate be
C. The supermarket marks up the price by 3% and it is sold at
$3.

So, we have C *( 1 + 3%) =
3

=> C* (1 + 0.03) =
3

=> C*( 1.03) =
3

=> C =
3/1.03

=> C =
$2.91

The manufacturer gets $2.91 per
chocolate.