图表 pie 控件，当 [hasLegend]="false" 时，百分比没有被正确格式化

[dusdong]

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[ ] Feature request
[ ] Documentation issue or request

Reproduction link

Steps to reproduce

<pie
      [hasLegend]="false"
      subTitle="销售额"
      [height]="248"
      [lineWidth]="4"
      [total]="salesTotal"
      [data]="salesPieData"
      [valueFormat]="handlePieValueFormat">
</pie>