To accurately calculate the return on investment (ROI) of your social media ads, you must take into account four essential steps. Firstly, you must define your goals and objectives, and determine how you will measure success. This includes setting clear and specific KPIs, such as impressions, clicks, conversions, or revenue. Secondly, you must track and measure your results, using tools such as pixels, UTM parameters, analytics platforms, or dashboards. Additionally, you must ensure that the results are attributed to your ads and not to other factors. Thirdly, you must calculate your costs, including ad spend, creative production, agency fees, or software subscriptions, as well as the opportunity cost of your time and resources. Finally, you must calculate your ROI by subtracting your costs from your results, dividing the difference by your costs, and multiplying the result by 100. For example, if you spent $1,000 on your ads and generated $2,000 in revenue, your ROI would be ($2,000 - $1,000) / $1,000 x 100 = 100%.