How do I increase a fixed sum by 50% properly?

You would multiply that number by 1.5.

Example: 20, increased by 50%

20 x 1.5 = 30

PLEASE HELP!!!!!!...FOR LACK OF CERTAIN VARIABLE TYPE MATH SKILLS AND A NEED IN ASKING THIS: IS IT IN FACT THAT 1.5 IS THE SAME AS MULTIPLYING BY 0.50 IN FINDING THE ANSWER? IF MY ASSUMPTION RING TRUE, THEN I HAVE NO FEASIBLE REASON FOR CONSISTENTLY COMING UP WITH THE WRONG ALLOCATIONS FOR MY LINE AND FUNCTIONAL BUDGET SYSTEM PORTION OF THIS FINAL. I ACED WEEK 6's BUDGET ASSIGNMENT SO I HAVE THE CORRECT TOTALS TO BE ABLE TO ALLEGEDLY COMPLETE THIS. HERE ARE MY 50% INCREASED AMOUNTS AND MAYBE YOU CAN ASSIST ME IN WHETHER I HAVE THESE FOULED UP OR ??? PLEASE HELP, I TRULY AM DEAD IN THE WATER WITH THIS. THANK YOU EVER SO MUCH FOR SPEEDY ASSISTANCE WITH MY ISSUE.

First budget resource amount was $1,600,000.00 and this budget is to be increased by 50%. So, my allocation for that increased amount becomes $2,400,000.00. I have done the following in order to get my increase total:

1,600,000*0.50= $800,000 so 1,600,000+800,000= $2,400,000.00 OR 1,600,000/2= 800,000+1,600,000= 2,400,000 OR also your assistance with answer: 1,600,000*1.5=800,000+1,600,000= 2,400,000
OK SO IS THERE SOME PROBABILITY THAT I MAY OR MUST USE ONE OF THE ABOVE FOR CERTAIN SITUATIONS FOR FINDING THE ANSWER?? Oh my I'm super frazzled with this. Not quite sure why this is confusing me so when the first budget was even harder

To increase a fixed sum by 50%, you can follow these steps:

1. Multiply the fixed sum by 50%. To do this, divide the percentage value by 100 and then multiply it by the fixed sum.

For example, let's say the fixed sum is $100:

50% of $100 = (50/100) * $100 = $50

2. Add the result from step 1 to the fixed sum.

$100 + $50 = $150

So, to properly increase a fixed sum of $100 by 50%, you would get a total of $150.