Sheetcalc For windows V2.1 ONLINE HELP
basic-use > % Calculation
% Calculation of SheetCalc , will act like a desktop calculator.
When you shopping
It is designed to be useful to calculate the "10% Off".
100 × 20% Use this when determining the 10% of 100.
100 - 20% Use this when determining the 10% discount of 100.
100 + 20% Use this when you ask 10% more 100.
Please note that originally, 20% is 0.2.