please can someone help me to show me how do they get the persantage

eiuise- ABC Analysis 2) Calculate for each tem arranged their oumulative total (value anrd pertcentage) of the overall consumption value (3) Set ABC classification limits and categorise items Item Annual Item Annual Consumption Price Consumption Conewtaptton orpton Category Component 7 Component 5 Component 6 Component 2 Component3 QTY 1 1,200 27,000 650 19,500 ZAR)(ZAR) 2.85 31,920.00' 31,920.00! 4-5,870 | A 1.001 27,000.00 58,920.00!3,770|A 3.40 2,210.00 b 3G 7p B 0.11 | 2,145.00 03215|8e,701B 5.20 2,080.00 bS55 | 92, Component 101 100 . 18.00 Component 9 32,000 0.05 Component 4 1,000 Component 1 4,000 Component 8 2,000 1.800.00-1 i 51954701-B 1,600.00 b8155) 97,6%, c 1,200.00 bgasS 99,3% 1.20 0.07 0.09 280.00 702.35 | q-1,7 % set classification values: A-items 80%) B-items 15% and C-item$% of the overall consumption limit S Catocyonze item mateviclhendlins 0005 221 17222111 5079 0200 412