We know that kinetic energy and Momentum are related by the equation

#P=sqrt (2mKE)#

Where #P# : momentum

#m# : mass

#KE# : kinetic energy

#:.# when kinetic energy will increase by 800% that is the new kinetic energy is 9 Times the initial kinetic energy then the new Momentum will become 3 times the initial momentum as depicted by the equation therefore increment in momentum is given by

#(P_2-P_1)/P_1xx100#

#=#200%