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

float unit_price(const float pack_price, const int rolls_count, const int pieces_count);

int main() {
    printf("%.4f\n", unit_price(5.63, 20, 200));
    //printf("%.4f\n", unit_price(4.79, 16, 150));
    return 0;
}

float unit_price(const float pack_price, const int rolls_count, const int pieces_count) {
    float result;
    result = (pack_price*100)/(rolls_count*pieces_count);
    result = result*100;
    result = round(result);
    result = result/100;
    return result;
}