Phone did a major update 5/25/16

[AC Question]

After the major update, now the phone button show and so does the camera, every time I swipe to unlock my phone the phone call screen opens. It would help if the buttons could be moved, because im sure everyone has to touch the bottom and swipe upward, so you automatically touch the left or right corner. And also the calculator has become dumb, it no longer knows how to cut 50, 60, 70 percent it just subtracts that amount off the number. So if I want to suntract 50% from $3.50 it gives me $3.00. It worked fine before the update.

 

[TJA3500]

50% = .50
Subtract .50 from $3.50 = $3.00
That looks correct to me.
50% × $3.50 = $1.75

 

[chanchan05]

1. What phone do you have?

2. As for the calculator, it's just probably the phone companies decided to follow correct math principles instead of catering to improper math which previous calculator followef. I know you just want to get the 50% of 3.50, but mathematically speaking, 3.50 - 50% = 3.00 is correct because 50% = 0.5. Percentages are after all simply fractions of a whole, as 50% = 1/2. To get 50% using correct mathematical principles, the correct equation should be 3.50 x 50%, which is 3.50 x 1/2, which is also 3.50/2.

It's not that the calculator became dumb. It just read a proper math book and learned to math correctly.