-38.5% is the change from 561 to 345
Calculation steps:
[( 345 - 561 ) ÷ 561] x 100 = -38.5%
Formula
Percentage change = [(345 - 561) / 561] x 100
Subtract the new number by the original number
345 - 561 = -216
-216 ÷ 561 = -0.3850267379679144
-0.3850267379679144 x 100 = -38.5%