indentation

I have had several complaints by some people who wish to help me and I 
wish to get the problem straight. I wrote this small utility myself and 
added some indentation and I wonder if it is acceptable. It does make
source 
easier to read.

#include <stdio.h>
#include <stdlib.h>

int main(int argc, char **argv) {
 if (argc!=3) {
  fprintf(stderr,"usage error\n");
  return -1;
  }
 double x,y;
 x=strtod(argv[1],NULL);
 y=strtod(argv[2],NULL);
 printf("%.2f\n",y/x);
 return 0;
 }

    Is this a good example of a properly indended program?

Bill