-39.04% is the change from 561 to 342
Calculation steps:
[( 342 - 561 ) ÷ 561] x 100 = -39.04%
Formula
Percentage change = [(342 - 561) / 561] x 100
Subtract the new number by the original number
342 - 561 = -219
-219 ÷ 561 = -0.39037433155080214
-0.39037433155080214 x 100 = -39.04%