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add_filter('woocommerce_dynamic_pricing_is_cumulative', 'on_woocommerce_dynamic_pricing_is_cumulative', 10, 3);
function on_woocommerce_dynamic_pricing_is_cumulative($cumulative, $discounter_name, $cart_item) {
    if ($discounter_name == 'simple_category' || $discounter_name == 'simple_membership') {
        $cumulative = false;
    }
    return $cumulative;
}