-67.7% is the change from 870 to 281
Calculation steps:
[( 281 - 870 ) ÷ 870] x 100 = -67.7%
Formula
Percentage change = [(281 - 870) / 870] x 100
Subtract the new number by the original number
281 - 870 = -589
-589 ÷ 870 = -0.6770114942528735
-0.6770114942528735 x 100 = -67.7%