Yummie currently has a 20% off voucher at the top of the page, which takes 20% off your entire website order when you apply the code at checkout. That voucher is best if you are buying full price items or have a mid to large basket where a straight percentage off saves the most. The sale section offering up to 86% off sale styles is the other major option and is best when the items you want are already in the sale.
Big baskets of full price items: Use the 20% off voucher. On a CA$200 full price order, for example, the 20% off voucher takes 20% off (percent), so you pay CA$160 and you save CA$40. This is better than the 15% first order signup on the same full price total, which would save CA$30 and leave you with CA$170.
Small to medium first time orders: If this is your first order and you prefer not to enter a code, the 15% off for signing up saves money on full price items but yields less than the 20% voucher. On a CA$60 full price purchase, the 20% off voucher brings the total to CA$48, saving CA$12, while the 15% signup reduces it to CA$51, saving CA$9. Use the signup only if you cannot or do not want to use the voucher.
Shopping the sale section: If the items you want are marked down in the Up to 86% Off Sale Styles event, compare the sale price to what you would pay with a code on full price items. For example, an item originally CA$120 marked down by 86% costs CA$16, a saving of CA$104 versus the original price. The sale price can be far lower than applying the 20% voucher to full price goods, but the sale applies only to sale styles and does not require a code.
When you choose between the voucher and the signup discount: Both apply to website orders only. Take the 20% off voucher above when it is permitted for the items in your cart, because 20% off always reduces a full price total more than 15% off. Use the 15% signup discount only if you cannot use the voucher or prefer the signup route as a first order option.
To pick the lowest total, calculate the final price for your cart with each applicable saving and take whichever leaves you paying less. No other combination rule is stated in the offer terms, so treat each discount on its own and choose the single option that gives the smaller final price.