You can use the Adjustments section (settings -> price adjustments) to add an adjustment across all products. This will not update the pricing formula or the prices set at each attribute, this will only be added on top of those prices.
You can use the Adjustments section (settings -> price adjustments) to add an adjustment across all products. This will not update the pricing formula or the prices set at each attribute, this will only be added on top of those prices.
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