Sample

Mold

Pre-Demineralization

Hardness

Post-Demineralization

Hardness

Change in Hardness after

Demineralization

Percent Change in Harness (%)

1

A

189.4

152.4

37

19.5354

2

B

196.9

142.3

54.6

27.7298

3

C

69.2

42.3

26.9

38.8728

4

A

170.1

116.4

53.7

31.5697

5

B

249.6

114.4

135.2

54.1667