-99.3% is the change from 285 to 2
Calculation steps:
[( 2 - 285 ) ÷ 285] x 100 = -99.3%
Formula
Percentage change = [(2 - 285) / 285] x 100
Subtract the new number by the original number
2 - 285 = -283
-283 ÷ 285 = -0.9929824561403509
-0.9929824561403509 x 100 = -99.3%