-54.94% is the change from 617 to 278
Calculation steps:
[( 278 - 617 ) ÷ 617] x 100 = -54.94%
Formula
Percentage change = [(278 - 617) / 617] x 100
Subtract the new number by the original number
278 - 617 = -339
-339 ÷ 617 = -0.5494327390599676
-0.5494327390599676 x 100 = -54.94%