Adjust buyCRED Points Cost

/**
 * Adjust buyCRED Cost
 * Adjusts the cost for buying points via the
 * buyCRED add-on.
 * @version 1.0
 */
add_filter( 'mycred_buycred_get_cost', 'buyred_volume_pricing', 10, 2 );
function buyred_volume_pricing( $cost, $amount ) {

    // If buying 25 points
    if ( $amount == 25 )
        return 25;

    // If buying 50 points
    if ( $amount == 50 )
        return 45;

    // If buying 100 points
    if ( $amount == 100 )
        return 85.00;

    // If buying 200 points
    if ( $amount == 200 )
        return 160.00;

    // This is a filter, always return something
    return $cost;

}