How to change the price componnents order in the order total field view
Implementing hook_commerce_price_component_type_info_alter hook you can change weight of price components to change sequence. Check following example:

&lt;?php
/**
* Implements hook_commerce_price_component_type_info_alter()
**/

function &lt;MODULE_NAME&gt;_commerce_price_component_type_info_alter(&amp;$components) {
  if (!empty($components['tax|tax_on_shipping'])) {
    $components['tax|tax_on_shipping']['weight'] = 30;
  }
}