WooCommerce - Change price example

<?php
add_filter( 'woocommerce_variable_sale_price_html', 'custom_variable_price', 40, 2 );
add_filter( 'woocommerce_variable_price_html', 'custom_variable_price', 40, 2 );
function custom_variable_price( $price, $_product ) {
  $terms = get_the_terms( $_product->id, 'product_cat' );
  foreach ($terms as $term) {
    switch ($term->term_id) {
      case 134: // some other category
        $price = '$0.80-$2.00';
        break;
      case 132: // some other category
        $price = '$1.50-$2.00';
        break;
      case 138: // some other category
        $price = '$1.25';
        break;
      case 142: // some other category
        $price = '$0.30';
        break;
      case 140: // some other category
        $price = '$5.00';
        break;
      case 141: // some other category
        $price = '$1.00-$1.50';
        break;
      case 139: // some other category
        $price = '$1.00';
        break;
      case 143: // some other category
        $price = '$3.00';
        break;
      case 150: // some other category
        $price = '$0.80-$2.00';
        break;
      case 152: // some other category
        $price = '$0.80-$2.00';
        break;
      case 153: // some other category
        $price = '$0.80-$2.00';
        break;
      case 156: // some other category
        $price = '$0.80-$2.00';
        break;
      case 159: // some other category
        $price = '$1.00';
        break;
      case 160: // some other category
        $price = '$1.50-$2.00';
        break;
      case 154: // some other category
        $price = '$0.80-$2.00';
        break;
      case 157: // some other category
        $price = '$5.00';
        break;
      case 158: // some other category
        $price = '$3.00';
        break;
      case 163: // some other category
        $price = '$0.80-$2.00';
        break;
      default:
    } // end switch
  } // end foreach
  // now do the specials
  switch ($_product->id) {
    case 6952:
      $price = '$0.25'; // applies to 6952
      break;
    default: // anything else
  } // end switch
  return $price; // any other category
} // end function