Should I use percentage or dollar amount discounts?

As a Shopify store owner in the fashion accessories space, I've been wrestling with the discount strategy that'll actually move the needle on my conversions. Every time I run a sale, I find myself second-guessing whether percentage or dollar discounts will be more compelling. My gut tells me there's a strategic science to this, but I'm tired of making decisions based on intuition. I've watched my competitors run seemingly random discount campaigns, and I want a more calculated approach. Some products in my catalog range from $20 to $200, which makes the discount decision even more complex. When I offer a flat $10 off, it feels significant on a $30 item but almost negligible on a $150 piece. Conversely, a percentage discount seems more universally appealing, but I worry about margins, especially on my higher-ticket items. I need a method that not only attracts customers but also preserves my profitability and doesn't train my audience to always expect massive markdowns. This isn't just about a number—it's about creating a perception of value that drives genuine, profitable conversions.