In a subtraction formula, the difference is 82.8, the minuend increases by 6.8, and the subtrahend decreases by 0.8, what is the difference at this time?
在一道减法算式中差是82.8，被减数增加6.8，减数减少0.8，这时差是多少．
<gadget id="calculator">82.8 + 6.8 + 0.8</gadget>
<output>90.4</output>

<result>90.4</result>