C programming: why are my decimals not displaying & how do I define black spaces

Question

I'm learning basic C for an Introductory Programming class that I'm taking and I have two questions related to the code below.

First: in the //calculations section, I want my values called cryr1, cryr2, cryr3, and avgcr, to display the results out to 2 decimal places. I'm only getting whole numbers with 2 decimals places. QUESTION: Is there something wrong in how I wrote my calculations?

Second: in the section where I have all my printf statements, I have a lot of empty white spaces to support the spacing in the table that I want to render. However, if the inputs to this output vary in numerical length, the columns don't render properly. QUESTION: Is there some code or syntax that I should use that calculates or determines the number spaces that each value in the table show appear?

// Global Variable declarations
FILE *reportfile;                // report file (for output) 
FILE *inputfile;                 // disk file (for input)    
char company[31];                // company name             
int assetsyr1;                   // assets year 1            
int assetsyr2;                   // assets year 2
int assetsyr3;                   // assets year 3
int liabilitiesyr1;              // liabilties year 1
int liabilitiesyr2;              // liabilties year 2
int liabilitiesyr3;              // liabilities year 3
float cryr1;                     // current ratio yr1
float cryr2;                     // current ratio yr2
float cryr3;                     // current ratio yr3
float avgassets;                 // average assets
float avgliabilities;            // average liabilities
float avgcr;                     // average current ratio


//calculations
cryr1 = (assetsyr1/liabilitiesyr1);
cryr2 = (assetsyr2/liabilitiesyr2);
cryr3 = (assetsyr3/liabilitiesyr3);
avgassets = (assetsyr1 + assetsyr2 + assetsyr3)/3;
avgliabilities = (liabilitiesyr1 + liabilitiesyr2 + liabilitiesyr3)/3;
avgcr = (cryr1 + cryr2 + cryr3)/3;


printf("%s\Current Ratio Report\n\n", company);
printf("                Current           Current          Current\n");
printf("Year            Assets            Liabilities      Ratio\n");
printf("----------------------------------------------------------\n");
printf("2010              %d             %d             %1.2f\n", assetsyr1, liabilitiesyr1, cryr1);
printf("2011              %d              %d             %1.2f\n", assetsyr2, liabilitiesyr2, cryr2);
printf("2012              %d             %d             %1.2f\n", assetsyr3, liabilitiesyr3, cryr3);
printf("----------------------------------------------------------\n");
printf("Average           %1.0f             %1.0f             %1.2f\n\n", avgassets, avgliabilities, avgcr);

The image is supposed to render like this

Any help you can offer is much appreciated. Thank you, David

I've placed the source code and input file here

Answer 1

When you divide an integer by a integer and you want a float result that has its decimal part NOT truncated, you should typecast the integer to a float. That is what I understand by looking at your code

The safest way I would say would be is

//calculations
cryr1 = ((float)assetsyr1/liabilitiesyr1);
cryr2 = ((float)assetsyr2/liabilitiesyr2);
cryr3 = ((float)assetsyr3/liabilitiesyr3);
avgassets = ((float)(assetsyr1 + assetsyr2 + assetsyr3))/3;
avgliabilities = ((float)(liabilitiesyr1 + liabilitiesyr2 + liabilitiesyr3))/3;
avgcr = ((float)(cryr1 + cryr2 + cryr3))/3;

Try it out

For the second part of the question

printf statements have the ability to "set" the field for printing Like you used the %1.2f, it ensures right-alignment and prints 2 decimal spaces.

There is a similar concept for integer types as well

 printf("%7d", 12345);           //This will print   12345   (right aligned)

 printf("%7d", 123);             //This will print     123   (right aligned also notice that both numbers start from the right at same position)

You can remove a couple of spaces from the printf statements. So you can fix the tab headings and work with these