Correctly display the cost to learn the proficiency (#74075)

* Update talker_character.cpp

* Update src/talker_character.cpp

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src/talker_character.cpp

@@ -1097,7 +1097,8 @@ std::string talker_character_const::proficiency_training_text( const talker &stu
 
     if( cost > 0 ) {
         //~ Proficiency name: (current_practice) -> (next_practice) (cost in dollars)
-        return string_format( _( "%s: (%2.0f%%) -> (%s) (cost $%d)" ), name, pct_before, after_str, cost );
+        return string_format( _( "%s: (%2.0f%%) -> (%s) (cost $%d)" ), name, pct_before, after_str,
+                              cost / 100 );
     }
     //~ Proficiency name: (current_practice) -> (next_practice)
     return string_format( _( "%s: (%2.0f%%) -> (%s)" ), name, pct_before, after_str );