{"id":4532,"slug":"samro-cost-to-income-ratio-decade-robustness","title":"Robustness of SAMRO’s cost-to-income ratio, 2016 to 2025 (cost_to_income_pct)","source":"Recomputed from samro-cost-to-income-ratio-decade","source_url":"","source_type":"computed","method":"Sensitivity check on \"cost_to_income_pct\" in the dataset samro-cost-to-income-ratio-decade, 10 rows carrying a value. Rows sorted by that column, then the totals recomputed with the largest rows dropped one scenario at a time, and again with named rows excluded. sum_change_pct and mean_change_pct are each scenario against the full set. A finding that moves sharply when a single row leaves is a finding about that row.","unit":"percent","license":"Afrobeats Wire's compilation and analysis are licensed CC BY 4.0. Rights in the underlying source data remain with the source named above.","confidence":"medium","retrieved":"2026-09-15 01:42:48","n":10,"first_party":0,"columns":[{"key":"scenario","label":"Scenario","type":"text"},{"key":"n","label":"Rows","type":"number"},{"key":"sum","label":"Total","type":"number"},{"key":"mean","label":"Mean","type":"number"},{"key":"top_share_pct","label":"Largest row share, %","type":"number"},{"key":"sum_change_pct","label":"Change in total, %","type":"number"},{"key":"mean_change_pct","label":"Change in mean, %","type":"number"}],"rows":[{"scenario":"All rows","n":10,"sum":295.8,"mean":29.58,"top_share_pct":13.52,"sum_change_pct":0,"mean_change_pct":0},{"scenario":"Excluding the top 1 (?)","n":9,"sum":255.8,"mean":28.4222,"top_share_pct":15.09,"sum_change_pct":-13.52,"mean_change_pct":-3.91},{"scenario":"Excluding the top 3 (?, ?, ?)","n":7,"sum":185.2,"mean":26.4571,"top_share_pct":16.95,"sum_change_pct":-37.39,"mean_change_pct":-10.56},{"scenario":"Excluding the top 5 (?, ?, ?, ?, ?)","n":5,"sum":124.5,"mean":24.9,"top_share_pct":23.37,"sum_change_pct":-57.91,"mean_change_pct":-15.82}]}