floating point - C Program prints 0.00000 everytime but returns correct answer -

i have pretty simple code i'm having issues with. program calculates someone's weight in kilograms , displays it. however, every time run, printed answer comes 0.00000 returns correct answer. see wrong code?

#include <stdio.h> #include <math.h>  int main(void) {      float w;     float const wc=0.454;      printf("enter weight in pounds ");     scanf("%f", &w);       float wk = w * wc;      printf("your weight in kilograms is: %f", &wk);      return(wk); }  

you don't need pass address of variable argument format specifier print value. need change

 printf("your weight in kilograms is: %f", &wk); 

to

 printf("your weight in kilograms is: %f", wk); 

that said,

1. always check return value of scanf(). without that, in case scanf("%f", &w); fails, you'll invoking undefined behavior you'll end using unitialized local variable float wk = w * wc; in float wk = w * wc;.

2. please don't make return function. try stick return wk;.