-55.71% is the change from 630 to 279
Calculation steps:
[( 279 - 630 ) ÷ 630] x 100 = -55.71%
Formula
Percentage change = [(279 - 630) / 630] x 100
Subtract the new number by the original number
279 - 630 = -351
-351 ÷ 630 = -0.5571428571428572
-0.5571428571428572 x 100 = -55.71%