To remove decimal after add comma
<div class="transaction-item transaction-price">
<?php
$lot_size = $row['area_sqft'];
$psf = $row['unit_price_psf'];
$total_price = $lot_size * $psf;
$total_price_comma = number_format($total_price, 2, '.', ',');
?>
<?php print str_replace(".0","",$total_price_comma); ?>
</div>