-50.51% is the change from 489 to 242
Calculation steps:
[( 242 - 489 ) ÷ 489] x 100 = -50.51%
Formula
Percentage change = [(242 - 489) / 489] x 100
Subtract the new number by the original number
242 - 489 = -247
-247 ÷ 489 = -0.5051124744376279
-0.5051124744376279 x 100 = -50.51%