Recipe quantities: 4 to 6 servings
Factor: 1 1/2 (1.5)
Original → scaled; units unchanged. Notes are unscaled.

Flour: 1 1/2 cups → 2 1/4 cups [decimal: 2.25]
Sugar: 1/3 cup → 1/2 cup [decimal: 0.5]
Oil: 1–2 tbsp → 1 1/2–3 tbsp [decimal: 1.5–3]
Tomatoes: 2 cans → 3 cans [decimal: 3]; unscaled note: 14 oz can
Salt: Unquantified → Unscaled; unscaled note: to taste
Water: 1/4 cup → 3/8 cup [decimal: 0.375]

Arithmetic only; this is not a tested recipe or a cooking adjustment.
https://mavolife.com/tools/recipe-scaler