-45.63% is the change from 561 to 305
Calculation steps:
[( 305 - 561 ) ÷ 561] x 100 = -45.63%
Formula
Percentage change = [(305 - 561) / 561] x 100
Subtract the new number by the original number
305 - 561 = -256
-256 ÷ 561 = -0.4563279857397504
-0.4563279857397504 x 100 = -45.63%