-40.87% is the change from 827 to 489
Calculation steps:
[( 489 - 827 ) ÷ 827] x 100 = -40.87%
Formula
Percentage change = [(489 - 827) / 827] x 100
Subtract the new number by the original number
489 - 827 = -338
-338 ÷ 827 = -0.40870616686819833
-0.40870616686819833 x 100 = -40.87%