Hello,
In order to hide the bottom (right price) add this code to the Theme Settings > Custom CSS:
body .product-grid-item .price,
body .single-product-page .summary-inner > .price {
font-size: 0;
}
body .product-grid-item .price del,
body .single-product-page .summary-inner > .price del {
margin-right: 3px;
}
body .product-grid-item .price span:first-child {
font-size: 14px;
}
.single-product-page .summary-inner > .price span:first-child {
font-size: 22px;
}
Best Regards