Complete the following table showing effects of changes in retirement "risk variables" on periodic work$-$life retirement investment contributions required to meet a retirement need $($assuming all else equal$).$

$\backslash$table$[[$Factor:$,\backslash$table$[[$Inflation$],[$Rate$]],\backslash$table$[[$Investment$],[$Return Rate$]],\backslash$table$[[$Work Life$],[$Expectancy$]],\backslash$table$[[$Retirement Life$],[$Expectancy$]],\backslash$table$[[$Retirement$],[$Lifestyle$]]],[$Effect if factor increases:,,,,,$],[$Effect if factor decreases:,,,,,$]]$