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dotXLSOpen Workspace

Calculate Percentage Change

Calculate percentage change between old and new values without changing row order.

Choose old and new value columns, preview percentage changes, then add a % Change column as one reversible step.

Paste Data

Copy cells from Excel or Google Sheets and paste them here.

Import a spreadsheet file

Import CSV or XLSX data into the current dotXLS workspace. Files are processed in your browser.

Tools

Choose old and new numeric columns, preview the percentage change for each row, then add the result as a new column.

Percentage change

Rows with an old value of zero are left blank because percentage change is undefined.

Undo and Redo controls are available with the current grid.

Paste spreadsheet data to create your workspace.

Name	Department	Amount
Ahmed	Sales	1200
Maria	HR	950

Your data stays in this browser tab and is not sent to WordPress.

Export result

Download the current workspace data after editing or cleaning.