求助帖！！！实在不知道哪里错了

#include<stdio.h>
#define RATE1 0.13230
#define RATE2 0.15040
#define RATE3 0.30025
#define RATE4 0.34025
#define BREAK1 360.0
#define BREAK2 468.0
#define BREAK3 720.0
#define BASE1 (RATE1*BREAK1)
#define BASE2 (BASE1+(RATE2*(BREAK2-BREAK1))
#define BASE3 (BASE1+BASE2+(RATE3*(BREAK3-BREAK2)))
int main(void)
{
double kwh;
double bill;
printf("输入你的用电量（kw/h):\n");
scnaf("%lf", &kwh);
if (kwh <= BREAK1)
bill = RATE1*kwh;
else if (kwh <= BREAK2)
bill = BASE1 + (RATE2*(kwh - BREAK1));
else if (kwh <= BREAK3)
bill = BASE2 + (RATE3*(kwh - BREAK2));
else
bill = BASE3 + (RATE4*(kwh - BREAK3));
printf("你需要缴纳 %.2f 的电费\n");
return 0;
}