You can add decimal values to your rental listings using this filter. The default accepts whole numbers and here is how to allow $45.50/week.

All you need to do is add the following function to your theme functions.php file to change the default from number to decimal.

// Adjust Easy Property Listings Rental Listings to accept decimals
function my_epl_price_number_format() {
	$decimal = 'decimal';
	return $decimal;
add_filter( 'epl_price_number_format' , 'my_epl_price_number_format' , 1 );