sale_report_process.php add this for this issue.

[wilidga]

function total_price($totals){ $sum = 0; $sub = 0; $profit = 0; /*add variable for the profit result*/ foreach($totals as $total ){ $sum += $total['total_saleing_price']; $sub += $total['total_buying_price']; $profit = $sum - $sub; } return array($sum,$profit); }

[riyansuryapratama]

just define variable profit with 0

[ghost]

https://github.com/bitsandbots/inventory