Monitoring the Effectiveness of Changes: How to Know if a UX Audit Was Useful

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Any investment in improving user experience must be justified in terms of return on investment.

To calculate the return on investment (ROI), it is necessary to compare the additional income or savings obtained from implementing changes after a UX audit with the costs of implementing these changes.

There are a few steps to take here.

Estimate the costs of implementing changes
Costs can be direct and indirect.

Direct costs :

cost of services of UX analysts or consultants;
development and design, i.e. the cost of south korea consumer email list services of developers and designers to implement the recommended changes;
testing and QC (Quality Control), the costs of testing new functions to ensure their correct operation.
Indirect costs :

cost of services of UX analysts or consultants;
the working time of the company's own employees spent by them on implementing changes;
the cost of tools and software used to implement changes (e.g. A/B testing tools, analytics, etc.).
And additional income
In particular,

increasing conversion : it is necessary to compare conversion rates before and after implementing changes.

Formula for calculation: Additional revenue = (Number of new conversions X Average cost per conversion) - Revenue before changes.
Improving customer satisfaction and loyalty : It is necessary to analyze the reduction in the level of refusals and lost customers.

Formula for calculation: Additional revenue = (Bounce rate reduction X Average cost per conversion).