Erupting Magma

185 81 x 0.002 = 37.162

0.002

40 x 0.675 = 27

0.675

x 0.001 = 0

0.001

x 0.003 = 0

0.003

0 x 0.031 = 0

0.031

x 0.001 = 0

0.001