-68.41% is the change from 899 to 284
Calculation steps:
[( 284 - 899 ) ÷ 899] x 100 = -68.41%
Formula
Percentage change = [(284 - 899) / 899] x 100
Subtract the new number by the original number
284 - 899 = -615
-615 ÷ 899 = -0.6840934371523916
-0.6840934371523916 x 100 = -68.41%