-49.65% is the change from 284 to 143
Calculation steps:
[( 143 - 284 ) ÷ 284] x 100 = -49.65%
Formula
Percentage change = [(143 - 284) / 284] x 100
Subtract the new number by the original number
143 - 284 = -141
-141 ÷ 284 = -0.4964788732394366
-0.4964788732394366 x 100 = -49.65%