-65.24% is the change from 489 to 170
Calculation steps:
[( 170 - 489 ) ÷ 489] x 100 = -65.24%
Formula
Percentage change = [(170 - 489) / 489] x 100
Subtract the new number by the original number
170 - 489 = -319
-319 ÷ 489 = -0.6523517382413088
-0.6523517382413088 x 100 = -65.24%