-45.19% is the change from 489 to 268
Calculation steps:
[( 268 - 489 ) ÷ 489] x 100 = -45.19%
Formula
Percentage change = [(268 - 489) / 489] x 100
Subtract the new number by the original number
268 - 489 = -221
-221 ÷ 489 = -0.45194274028629855
-0.45194274028629855 x 100 = -45.19%