Question

Original Mass: 28.39g
Final Mass: 27.11g

What is the percent of change? Please show work

Answer 1

[ (28.39-27.11) / 28.39 ] * 100

So we get [ 1.28 / 28.39 ] * 100
and this is ~0.0451 * 100
So the percent of change is 4.5%

Answer 2

roughly

Answer 3

28.39-27.11=1.28.....1.28/28.39*100=4.5%