I have setup the Group Pricing (per item) contribution and it works fine, however I have discovered that it does not work with quantity discounts (products price manager).

Does anyone know a way to make this work?

GROUP A
01-50 = $0.75
50-100 = $0.50
100+ = $0.25

GROUP B
01-50 = $0.65
50-100 = $0.45
100+ = $0.15

GROUP C
01-50 = $0.95
50-100 = $0.80
100+ = $0.35