is there a way to apply dry and solid principal

am working on this code to make it shorter so that it could be easier to study or read and I have but advanced to apply the dry and solid principle so could you help me with how to refactor this code to do this if brand.rating = high if price_reference < 15 price_suggestion = (price_reference - product_database.shipping_cost * 0.75) * 1.1 price_original = price_suggestion elsif price_reference < 25 price_suggestion = (price_reference - product_database.shipping_cost * 0.775) * 1.1 price_original = price_suggestion elsif price_reference < 50 price_suggestion = (price_reference - product_database.shipping_cost * 0.8) * 1.1 price_original = price_suggestion elsif price_reference < 75 price_suggestion = (price_reference - product_database.shipping_cost * 0.825) * 1.1 price_original = price_suggestion elsif price_reference < 100 price_suggestion = (price_reference - product_database.shipping_cost * 0.85) * 1.1 price_original = price_suggestion elsif price_reference < 200 price_suggestion = (price_reference - product_database.shipping_cost * 0.875) * 1.1 price_original = price_suggestion elsif price_reference < 400 price_suggestion = (price_reference - product_database.shipping_cost * 0.9) * 1.1 price_original = price_suggestion elsif price_reference < 600 price_suggestion = (price_reference - product_database.shipping_cost * 0.925) * 1.1 price_original = price_suggestion else price_suggestion = (price_reference - product_database.shipping_cost * 0.95) * 1.1 price_original = price_suggestion elsif brand.rating = low if price_reference < 15 price_suggestion = (price_reference - product_database.shipping_cost * 0.75) * 0.9 price_original = price_suggestion elsif price_reference < 25 price_suggestion = (price_reference - product_database.shipping_cost * 0.775) * 0.9 price_original = price_suggestion elsif price_reference < 50 price_suggestion = (price_reference - product_database.shipping_cost * 0.8) * 0.9 price_original = price_suggestion elsif price_reference < 75 price_suggestion = (price_reference - product_database.shipping_cost * 0.825) * 0.9 price_original = price_suggestion elsif price_reference < 100 price_suggestion = (price_reference - product_database.shipping_cost * 0.85) * 0.9 price_original = price_suggestion elsif price_reference < 200 price_suggestion = (price_reference - product_database.shipping_cost * 0.875) * 0.9 price_original = price_suggestion elsif price_reference < 400 price_suggestion = (price_reference - product_database.shipping_cost * 0.9) * 0.9 price_original = price_suggestion elsif price_reference < 600 price_suggestion = (price_reference - product_database.shipping_cost * 0.925) * 0.9 price_original = price_suggestion else price_suggestion = (price_reference - product_database.shipping_cost * 0.95) * 0.9 price_original = price_suggestion else if price_reference < 15 price_suggestion = (price_reference - product_database.shipping_cost * 0.75) * 1 price_original = price_suggestion elsif price_reference < 25 price_suggestion = (price_reference - product_database.shipping_cost * 0.775) * 1 price_original = price_suggestion elsif price_reference < 50 price_suggestion = (price_reference - product_database.shipping_cost * 0.8) * 1 price_original = price_suggestion elsif price_reference < 75 price_suggestion = (price_reference - product_database.shipping_cost * 0.825) * 1 price_original = price_suggestion elsif price_reference < 100 price_suggestion = (price_reference - product_database.shipping_cost * 0.85) * 1 price_original = price_suggestion elsif price_reference < 200 price_suggestion = (price_reference - product_database.shipping_cost * 0.875) * 1 price_original = price_suggestion elsif price_reference < 400 price_suggestion = (price_reference - product_database.shipping_cost * 0.9) * 1 price_original = price_suggestion elsif price_reference < 600 price_suggestion = (price_reference - product_database.shipping_cost * 0.925) * 1 price_original = price_suggestion else price_suggestion = (price_reference - product_database.shipping_cost * 0.95) * 1 price_original = price_suggestion end