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NOTE: If the -% button does not have a preset discount then simply enter
your required amount (10 = 10%) before pressing the -% button.
The below example shows a transaction of £20 being discounted £1 by pressing
the - button
The below example shows a transaction of £2 being discounted £1 by pressing
the - button
NOTE: If the - button does not have a preset discount then simply enter
your required amount (100 = £1) before pressing the – button.