Anonymous posted an answer for this Casio MS-80TV Scientific Calculator:
"From the manual: Function: Keys Answer Percentage: 100 x 5% 100 x 5 % 5 Add On: 100 + (100..."
Anonymous posted an answer for this Casio Office Equipment & Supplies:
"1. Press [AC] 2. Hold [SET/%] key for about 2 seconds 3. Press [TAX+] 4. Input the tax..."
Office Equipment &... 2 answers