How is the Discount Factor calculated in the NPV analysis over the 10 year period?

1,227 NPV Analysis EBIT (1-1) Depreciation ANWC Capital Expenditure Operating Cash Flow 107 152 84 152 682 16 974 178 132 389 630 152 113 334 541 180 1042 1136 192207 143 154 421 454 680 735 164 122 361 583 952 152 -557169 793 Perpetual growth rate Discount factor 1 0 .922309225 0.8510233 0.7830768 0.7242406 0.6681186 0.6163456 0.3683845 0.5245245 0.4838786 0.44638252 Terminal value 16345