-12.47% is the change from 489 to 428
Calculation steps:
[( 428 - 489 ) ÷ 489] x 100 = -12.47%
Formula
Percentage change = [(428 - 489) / 489] x 100
Subtract the new number by the original number
428 - 489 = -61
-61 ÷ 489 = -0.12474437627811862
-0.12474437627811862 x 100 = -12.47%