-48.14% is the change from 619 to 321
Calculation steps:
[( 321 - 619 ) ÷ 619] x 100 = -48.14%
Formula
Percentage change = [(321 - 619) / 619] x 100
Subtract the new number by the original number
321 - 619 = -298
-298 ÷ 619 = -0.481421647819063
-0.481421647819063 x 100 = -48.14%