-49.69% is the change from 972 to 489
Calculation steps:
[( 489 - 972 ) ÷ 972] x 100 = -49.69%
Formula
Percentage change = [(489 - 972) / 972] x 100
Subtract the new number by the original number
489 - 972 = -483
-483 ÷ 972 = -0.49691358024691357
-0.49691358024691357 x 100 = -49.69%