What are the possible ways to improve sales and ROI of a business?

Sale of what? How can we come up with something unique if we don't know if the product is unique?

Promoting your products through Social Media is the answer to your question. Facebook, Twitter, Instagram, Pinterest, and YouTube are widely used for marketing. Aside from the fact that those sites are free, your business will be able to immediately reach your target audience globally.

There are various strategies that can be carried out to market your business through social media. The proven strategies that we incorporate in our business are:
a)posting informative visual-based content to Facebook groups
b)giving helpful answers to queries on different social media sites
c)posting on our social media accounts every day

In addition, you may also send customers a personalized message explaining the benefits of your products and services. It is more effective if customer testimonials will be included with your message. However, it is advisable to send marketing messages/emails at least two to three times a week.