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ri ck
i can't get my formula can some help
80 75.8 76.7 83.3 80.0 0.0
75 70.8 71.8 78.3 73.7 -0.5
70 65.9 66.8 73.2 68.6 -0.6
60 56.1 56.9 63.1 57.6 -1.0
80 75.8 76.7 83.3 80.0 0.0
75 70.8 71.8 78.3 73.7 -0.5
70 65.9 66.8 73.2 68.6 -0.6
60 56.1 56.9 63.1 57.6 -1.0