Answer :
[tex]54\% \ of 300= \frac{54}{100}*300= \\\\ =54*3= \\\\ = \boxed{162} \\\\ 300+162\to\boxed{\boxed{462}} [/tex]
300 divided by 100 is 3. Therefore, 3% of 300 is equal to the 1% of 100%. If you want to increase 300 by 54%, 3 multiplied by 54 is 162. Add 162% to 300% and that is your answer (462%).