How to update all records in a table?

Question

Yii

How to update all records
Need to multiply
Items::updateAllCounters(['price' => ], $condition);
How to increase all prices by 10 percent and decrease
Let's say prices are 5000/6000
Result when increasing 5500/6600
Result when decreasing 4500/4600

Answer 1

Increase by 10%:
Reduce by 10%:

Items::updateAll(['price' => new \yii\db\Expression('price * 0.9')]);