 <p>Either use a manual running total OR a <code>running-total field</code>, not both. By the way, a <code>running-total field</code> only works in a <code>footer</code> section.</p> <p>A better approach:</p> <pre><code>{#sumKN} - field is {table.KN}; summarize for all records; reset after change in group {#sumSKS} - field is {table.SKS}; summarize for all records; reset after change in group // place in `footer` section //{@ratio} // optional // EvaluateAfter({#sumKN}); // EvaluateAfter({#sumSKS}); {#sumKN} / {#sumSKS} </code></pre>