-97.99% is the change from 199 to 4
Calculation steps:
[( 4 - 199 ) ÷ 199] x 100 = -97.99%
Formula
Percentage change = [(4 - 199) / 199] x 100
Subtract the new number by the original number
4 - 199 = -195
-195 ÷ 199 = -0.9798994974874372
-0.9798994974874372 x 100 = -97.99%