Build a Calendar table with M code

The Tanggal column alone is not enough: the dashboard needs figures by month and by quarter, in January-to-December order, for Expense and Budget alike. A Calendar table (named Kalender in this course) provides exactly that: one row for every date in 2025, complete with year, month number, month name, quarter and day name. You don’t type 365 rows; you paste the M code below and Power Query builds the table for you.