Its an extension which will provide you the ability to create a coupon code with multiple discount percentages.
Like if you want to provide discount for
100-500 discount will be 10%
500-1000 discount will be 20%
1000-2000 discount will be 30%
and so on.
You just need to create a single coupon code and need to add from what amount to what amount how much discount you want to provide.
