Over the reporting period, Dominos Pizza Enterprises limited saw its ROA peak at 11.01% in 2019, gradually descending to a low of 5.21% in 2023, indicating a consistent downturn throughout the period. While DMP faced a significant drop in the 2020 financial year, its overall trajectory reflects a steady decline, a pattern mirrored by the ASK stock price (ref).

Explain why. This is a critical analysis and purely accounting based. Hence ad at least 10 credible references to back the reason up and validate it.