Format/align the retirement worth table

Align numbers to the right, handle different SWRs and net worth.

7% interest, compounding over many decades makes bigger numbers.
Who'd have thought?

README.md

@@ -38,11 +38,11 @@ REIT: $3,080 (🎯 8.03%)
 Portfolio total: $28,686
 
 Worth at retirement (Assuming 7% growth):
- - 39: $28,686  SWR: $1,147
- - 50: $58,391  SWR: $2,336
- - 55: $81,893  SWR: $3,276
- - 60: $114,875  SWR: $4,595
- - 65: $161,111  SWR: $6,444
+ - 39:     $28,686  SWR:    $1,147
+ - 50:     $58,391  SWR:    $2,336
+ - 55:     $81,893  SWR:    $3,276
+ - 60:    $114,875  SWR:    $4,595
+ - 65:    $161,111  SWR:    $6,444
 
 After-tax income: $49,700
 Charitable giving: $5,000 (10% of after-tax income)

src/main.rs

@@ -45,7 +45,9 @@ fn summarize_retirement_prospects(birthday: NaiveDate, portfolio_total: Decimal,
         // TODO: Correctly calculate age instead of this cheap approximation
         let retirement_age = day_of_retirement.year() - birthday.year();
         println!(
-            " - {}: {:}  SWR: {:}",
+            // Neatly displays net worth up to $25MM
+            // If your assets are that high, why are you running this jank?
+            " - {}: {: >11}  SWR: {: >9}",
             retirement_age,
             decutil::format_dollars(&future_total),
             decutil::format_dollars(&compounding::safe_withdrawal_income(future_total))