-54.43% is the change from 610 to 278
Calculation steps:
[( 278 - 610 ) ÷ 610] x 100 = -54.43%
Formula
Percentage change = [(278 - 610) / 610] x 100
Subtract the new number by the original number
278 - 610 = -332
-332 ÷ 610 = -0.5442622950819672
-0.5442622950819672 x 100 = -54.43%