116 - Interest Rate

Interest Rate

Time Limit: 1 sec

**The Problem**

Mr. Nezam deposited **X** taka in a bank and in **Y** years got **I** taka as interest.What is the percentage rate of interest per annum ?

Example:

if **X** = 500, **Y** = 3, and **I** = 105 then

The percentage rate of interest is 7 taka per annum.

**The Input**

The input file contains only 3 integer numbers **X**, **Y, I **(**X** < 10000, **Y **< 30, **I** < 40000 ).

**The Output**

Output will show the one integer numbers with percentage sign (**%**) which is the percentage rate of interest per annum in a separate line.

**[Note: Don't forget to put % sign after the integer value]**

**Sample Input**

500 3 105

**Sample Output**

7%

Problem Setter: Shahin ShamS