Test only one change at a time or you won't know what variable produced the new result. Code each variation you test and track the results. Every time a change produces better results, make it your new standard and continue testing. There is no such thing as the perfect promotion. But continual testing gradually gets you closer to it.
Testing is boring work for most business owners.
But it pays off in higher profits and reduced risk. Start testing today if you've been avoiding it. Implement a program to continually test and evaluate everything you do to promote your business. The steady increase in your profits will surprise you. Bob Leduc retired from a 30 year career of recruiting sales personnel and developing sales leads.