-99.3% is the change from 286 to 2
Calculation steps:
[( 2 - 286 ) ÷ 286] x 100 = -99.3%
Formula
Percentage change = [(2 - 286) / 286] x 100
Subtract the new number by the original number
2 - 286 = -284
-284 ÷ 286 = -0.993006993006993
-0.993006993006993 x 100 = -99.3%