[SOLVED] Trying to display discount on Product Page

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$special = $this->currency->format($this->tax->calculate($result['special'], $result['tax_class_id'], $this->config->get('config_tax')), $this->session->data['currency']);

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$disPercentage = ((($result['price']-$result['special'])/$result['price']) * 100);
$disPrice = $result['price']-$result['special'];

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$special = false;

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$disPercentage = false;
$disPrice = false;

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$data['special'] = $this->currency->format($this->tax->calculate($product_info['special'], $product_info['tax_class_id'], $this->config->get('config_tax')), $this->session->data['currency']);

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$disPercentage = ((($product_info['price']-$product_info['special'])/$product_info['price']) * 100);
$disPrice = $product_info['price']-$product_info['special'];

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'special'     => $special,

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'disPercentage' => $disPercentage,
'disPrice' => $disPrice,

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<li><a class="thumbnail" href="{{ popup }}" title="{{ heading_title }}"><img src="{{ thumb }}" title="{{ heading_title }}" alt="{{ heading_title }}" /></a></li>

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{% if special %}
                <div style="position: absolute;
    top: 10px;
    left: 10px;
    background-color: red;
    font-weight: 600;
    font-size: 14px;
    color: white;
    padding: 5px 10px;
    border-radius: 0px 20px 20px 0px;
    /* transform: rotate(-45deg); */
    z-index: 99;">
                
              $ {{ disPrice }} off
            </div>
        {% endif %}

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$disPercentage = ((($product_info['price']-$product_info['special'])/$product_info['price']) * 100);
$disPrice = $product_info['price']-$product_info['special'];

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$data['disPercentage'] = ((($product_info['price']-$product_info['special'])/$product_info['price']) * 100);
$data['disPrice'] = $product_info['price']-$product_info['special'];

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$tax_price = (float)$product_info['special'];

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$data['']