-69.12% is the change from 489 to 151
Calculation steps:
[( 151 - 489 ) ÷ 489] x 100 = -69.12%
Formula
Percentage change = [(151 - 489) / 489] x 100
Subtract the new number by the original number
151 - 489 = -338
-338 ÷ 489 = -0.6912065439672802
-0.6912065439672802 x 100 = -69.12%