Calculate the standard deviations for Roll and Ross by filling in the following table:

Note: A negative value should be indicated by a minus sign. Do not round intermediate calculations. Round your answers to $4$ decimal places.

$\backslash$table$[[\backslash$table$[[$State of$],[$Economy$]],\backslash$table$[[$Probability$],[$of State of$],[$Economy$]],\backslash$table$[[$Return$],[$Deviation from$],[$Expected$],[$Return$]],\backslash$table$[[$Squared$],[$Return$],[$Deviation$]],$Product$],[$Roll$,,,,],[$Bust$,0\mathrm{.}40,,,],[$Boom$,0\mathrm{.}60,,{}^2=,],[$Ross$,,,,],[$Bust$,0\mathrm{.}40,,,],[$Boom$,0\mathrm{.}60,-0\mathrm{.}0400,0\mathrm{.}0016,]]$

Note: Do not round intermediate calculations. Enter your answers as a percent rounded to $2$ decimal places.

$\backslash$table$[[,\backslash$table$[[$Standard$],[$Deviations$]],],[$Roll$,,\%$