-98.7% is the change from 230 to 3
Calculation steps:
[( 3 - 230 ) ÷ 230] x 100 = -98.7%
Formula
Percentage change = [(3 - 230) / 230] x 100
Subtract the new number by the original number
3 - 230 = -227
-227 ÷ 230 = -0.9869565217391304
-0.9869565217391304 x 100 = -98.7%