Adding Machine Calculator
Total:
0
Total: 0
History:
How to Use Adding Machine Calculator
StepbyStep Instructions

Select the Operation:
 Use the dropdown menu labeled “Operation” to choose the arithmetic operation you want to perform. The options include:
 + (Add): To add the entered number or percentage to the total.
 − (Subtract): To subtract the entered number or percentage from the total.
 × (Multiply): To multiply the total by the entered number or percentage.
 ÷ (Divide): To divide the total by the entered number or percentage.
 Use the dropdown menu labeled “Operation” to choose the arithmetic operation you want to perform. The options include:

Enter the Value:
 In the “Entry” field, input the number or percentage you want to use in the selected operation.
 For percentage calculations, enter the value followed by a
%
sign (e.g.,20%
), and the calculator will interpret it as a percentage of the current total.

Perform the Operation:
 Click the “Enter” button to apply the selected operation with the entered value.
 The calculator will update the total and record the operation in the history.

Review the Results:
 The updated total will be displayed under the “Total” section at the top.
 The history of all operations performed will be shown in the “History” section, allowing you to track how the final total was calculated.

Repeat or Reset:
 You can continue adding more operations by repeating the steps above.
 If you need to start over, simply refresh the page, and the calculator will reset all values.
Example Scenarios
Example 1: Simple Addition and Multiplication
 Operation:
+
, Number:100
Result: Total becomes100
.  Operation:
×
, Number:20%
Result: Total becomes20
(20% of 100).  Operation:
+
, Number:50
Result: Total becomes70
.  Operation:
÷
, Number:2
Final Result: Total becomes35
.
Example 2: Using Percentages
 Operation:
+
, Number:500
Result: Total becomes500
.  Operation:
−
, Number:10%
Result: Total becomes450
(10% of 500).  Operation:
×
, Number:1.5
Result: Total becomes675
.  Operation:
+
, Number:30%
Final Result: Total becomes877.5
(30% of 675).
Quick Tips
 Percentage Calculations: The percentage is always calculated based on the current total. For instance, if your total is
200
and you enter10%
, it calculates10% of 200
, which is20
, and adds or subtracts that from the total based on the selected operation.  History Tracking: The calculator keeps a detailed log of all operations performed, allowing you to review and understand how the final total was reached.
 Precision: The total is rounded to two decimal places for clarity and precision in financial calculations.
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