-4.31% is the change from 511 to 489
Calculation steps:
[( 489 - 511 ) ÷ 511] x 100 = -4.31%
Formula
Percentage change = [(489 - 511) / 511] x 100
Subtract the new number by the original number
489 - 511 = -22
-22 ÷ 511 = -0.043052837573385516
-0.043052837573385516 x 100 = -4.31%