-67.38% is the change from 610 to 199
Calculation steps:
[( 199 - 610 ) ÷ 610] x 100 = -67.38%
Formula
Percentage change = [(199 - 610) / 610] x 100
Subtract the new number by the original number
199 - 610 = -411
-411 ÷ 610 = -0.6737704918032786
-0.6737704918032786 x 100 = -67.38%