I have now made my Mac Calc Points widget available.
The widget is used for calculating the ‘points’ for food, based on the kilojoules, saturated fat, and serving size on the food packet.
You can choose kilo-calories or kilo-joules, measurements ‘per 100g’ or ‘per serving’, and the calculations based on constant numbers that are used in New Zealand or those suggested on Wikipedia.
To change the options, just click on the i in the bottom right corner.