-60.12% is the change from 499 to 199
Calculation steps:
[( 199 - 499 ) ÷ 499] x 100 = -60.12%
Formula
Percentage change = [(199 - 499) / 499] x 100
Subtract the new number by the original number
199 - 499 = -300
-300 ÷ 499 = -0.6012024048096193
-0.6012024048096193 x 100 = -60.12%