我没明白哪里有问题

#include <stdio.h>
int main()
{
	int w;
	double money;
	scanf("%d",&w);
	if(w<=150)
	money=w*0.4463;
	if(150<w<401)
	money=150*0.4463+(w-150)*0.4663;
	if(w>400)
	money=150*0.4463+(400-150)*0.4663+(w-400)*0.5663;
	printf("%.1lf\n",money);
	return 0;
}