Identifying trends in your data is useful to map the trajectory of whatever your dataset is measuring.
Typically Google Sheets and Excel include the ability to add a trend line, which is the most basic example of doing so.
What you want to think about though in exploring trends are, is the dataset significant enough? Do we have accuracy in the data? Is the duration or timeframe long enough?
Taking your data and visualizing it is the easiest one to begin to understand the trends, so be liberal in exploring different visualizations to help identify patterns, clusters, outliers.
Examining prior benchmarks, or creating benchmarks is also useful, to understand what should you be getting. Or is all your data within a reasonable range already.