Need to add the above hook in function.php of active theme
// Mini cart: Display custom price
add_filter( 'woocommerce_cart_item_price', 'filter_cart_item_price', 10, 3 );
function filter_cart_item_price( $price_html, $cart_item, $cart_item_key ) {
if(isset($_COOKIE["momsType"]) && $_COOKIE["momsType"] == "business" ){
$product_price = wc_get_price_excluding_tax( $cart_item['data'] );
}else{
$product_price = wc_get_price_including_tax( $cart_item['data'] );
}
return wc_price( $product_price );
}