I've Been Looking For a Simple Level Calculator on The Forum For 2 Days And I Did Not Find Any Easy And Simple Program.
So This is a Simple Code I've Written Which Tells You How Much Level You Can Buy With Your Current Respect Points You Have And How Much Respect Point Will Be Left After You Buy
It Does Not Require Any Downloading Process, You Can Execute It Online and It Will Perfectly Work.
You Can Use It From Here : https://onlinegdb.com/ryKfuHtLH
You Only Will Need To Write Your Current Level, Current Respect Points Number And The Respect Points You Need to /buylevel.