a decrease of 56%
31.36
The percent composition of manganese dichoride (MnCl2) is: - Mn: 44 % - Cl: 56 %
The score would be 56%
56-44 = 12
100
44
You can lose 44% which is 150*44/100 = 66. But then you must get every one correct!
44 x 56 = 2464
44 - 56 = -12
Which fraction is equal to 44/56
1.2727