Reduction according to the amount

How to apply a 15 % reduction for 100 € of purchase and 30 % for 200 € of purchase with the same code to a selection of product

Hello,

You do this with a parent coupon:

Coupon A: 15% discount for 100
Coupon B: 30% discount for 200
Coupon C: add both coupons A and B, ordering by highest discount to least, so B then A, then set process type to first found match

Then give out coupon C.