Is my calculation for NWC from 2015-2019 correct? What is the formula to find out the NET PPE from 2015-2019?

TAPIER 11, ALIIVIIT #2: EVUILT VALUE PER SHARE PUST 10% ALES 4% OGS PLANNING HURIZUN 2014 2015 2016 $100,000.00 $120,000.00 $132,000.00 $60,000.00 $72,000.00 $79,200.00 -$9,000.00 $10,800.00 $11,880.00 $16,000.00 $21,600.00 $23,760.00 $15,000.00 $15,600.00 $17,160.00 2017 $145,200.00 $87,120.00 $13,068.00 $26,136.00 $18,876.00 ther Cash Expenses epreciation BIT 2018 $159,720.00 $95,832.00 $14,374.80 $28,749.60 $20,763.60 2019 $175,692.00 $105,415.20 $15,812.28 $31,624.56 $22,839.96 Sales BPUWLI 2015 Sales grow (2016-2018) Long term growth in sale: Depreciation 2015 Deprec. To PPE After 2015 COGS/SALES Other expense/SALES Tax Rate PPE Growth to 2015 PPE to SALES after 2015 $16,000 18% 60% 9% WC ET PPE $12,000.00 $13,200.00 $14,520.00 $15,972.00 $17,569.20 $10,000.00 $80,000.00 21% 15% 75% 2015 2014 2016 2017 NWC to Sales Discount rate 2018 10% 10% 2019 REE CASH FLOW BIT TAPIER 11, ALIIVIIT #2: EVUILT VALUE PER SHARE PUST 10% ALES 4% OGS PLANNING HURIZUN 2014 2015 2016 $100,000.00 $120,000.00 $132,000.00 $60,000.00 $72,000.00 $79,200.00 -$9,000.00 $10,800.00 $11,880.00 $16,000.00 $21,600.00 $23,760.00 $15,000.00 $15,600.00 $17,160.00 2017 $145,200.00 $87,120.00 $13,068.00 $26,136.00 $18,876.00 ther Cash Expenses epreciation BIT 2018 $159,720.00 $95,832.00 $14,374.80 $28,749.60 $20,763.60 2019 $175,692.00 $105,415.20 $15,812.28 $31,624.56 $22,839.96 Sales BPUWLI 2015 Sales grow (2016-2018) Long term growth in sale: Depreciation 2015 Deprec. To PPE After 2015 COGS/SALES Other expense/SALES Tax Rate PPE Growth to 2015 PPE to SALES after 2015 $16,000 18% 60% 9% WC ET PPE $12,000.00 $13,200.00 $14,520.00 $15,972.00 $17,569.20 $10,000.00 $80,000.00 21% 15% 75% 2015 2014 2016 2017 NWC to Sales Discount rate 2018 10% 10% 2019 REE CASH FLOW BIT