总结：
全程没有暴力驾驶，也不温柔驾驶，无堵车，无载货，司机体重120，两乘客体重约190，正常车速、起步、刹车。
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上班里程：6788-6761=27公里；用电：100%-63%=37%
每公里用电量：37%÷27=1.37%
1%电量约行驶里程：27÷37%≈0.73公里
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下班里程：6815-6788=27公里；用电：63%-（63%-53%）-13%=40%
每公里用电量：40%÷27=1.48%
1%电量约行驶里程：27÷40%≈0.67公里
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中午休息少去的里程：
算法1：（0.73+0.67）÷2×10%≈7公里
算法2： 47（系统显示电续航）-39（系统显示电续航）=8公里
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剩余13%续航里程：
算法1：（0.73+0.67）÷2×（13%-5%）（假使强制到5%）≈5.6公里
算法2：剩余13%（系统显示电续航）4公里
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满电能走里程：
算法1： 27+27+7+4（系统显示电续航）=65公里
算法2： 27+27+7+5.6=66.6公里
算法3： 27+27+8（系统显示电续航）+4（系统显示电续航）=66公里
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综上：宋80满电程EV ECO模式可续航大约60-70公里(电池未衰减情况下)。