|  | @@ -204,7 +204,7 @@ module.exports = app => {
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				|  |  |                      expr += constant.toString();
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				|  |  |                  } else if (ex.type === materialConst.ex_type[1].value) {
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				|  |  |                      const change = ex.calc_num ? ex.calc_num : 0;
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				|  |  | -                    expr = expr + (change !== 0 ? '+' + change.toString() : '');
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				|  |  | +                    expr = expr + (change !== 0 ? '+' + ex.weight_num.toString() + '*(' + ex.m_price.toString() + '/' + ex.basic_price.toString() + ')' : '');
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				|  |  |                      sumByChange = this.ctx.helper.add(sumByChange, change);
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				|  |  |                  }
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				|  |  |              }
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