Hi all I am newbie in wordpress

I have a problem in remove or override an action/function in my parent theme my goal is show a display-job-card simply just a currency symbol with condition in my child theme.

below are code in my parent theme:

<div class="flex-master card-job-price text-right text-vertical-center">

                <?php if ( get_option( 'wpjobster_packages_enabled' ) == 'yes' && get_post_meta( $pid, 'job_packages', true ) == 'yes' && $package_price_vals ) { ?>

                    <span class="small-job"><?php _e( 'Starting at', 'wpjobster' ); ?></span>
                    <span class="display-price-card"><?php echo wpjobster_get_show_price( min( $package_price_vals ) ); ?></span>

                <?php } elseif ( get_post_meta( $pid, 'price_type', true ) ) { ?>

                    <span class="small-job"><?php echo sprintf( __( '%s Rate', 'wpjobster' ), wpjobster_translate_string( get_post_meta( $pid, 'price_type', true ) ) ); ?></span>
                    <span class="display-price-card"><?php echo wpjobster_get_show_price( get_post_meta( $pid, 'price', true ), 2, true ); ?></span>

                <?php } else { echo wpjobster_get_show_price( get_post_meta( $pid, 'price', true ), 2, true ); } ?>

            </div>

I have three types of 'price_type' custom/package and fixed. I would like to show "display-price-card" under price_type (package and fixed) only. I am not asking for the exact code. I am hoping someone who could give me some guidelines, logic.

I've done a lot of research however, i can't find any apply_filter nor do_action in here. I am not sure how i can get into this class and how to o it right...

Please help and thanks all of you!