Sunrise Furnishing Ltd needs to purchase glass panes to make dining tables. Last year Sunrise Furnishing has two suppliers, Eastside and Vitora, with the following supplier related information:

Supplier related activities	Cost per unit of activity driver	Number of activities for Eastside	Number of activities for Vitora
Returning poor quality glass panes	$120 per pane	25 panes	12 panes
Processing purchase orders	$20 per order	14 orders	40 orders
Receiving and inspecting deliveries	$50 per delivery	19 deliveries	15 deliveries
Supplier audit	$1000 per audit	5 audits	2 audits
Rework due to poor quality glass	$100 per table	60 tables	15 tables
Purchase price per glass pane		$100	$150
Number of glass panes purchased		410	780

Calculate the supplier performance index of Eastside (round your answer to 2 decimal places).