-50.56% is the change from 627 to 310
Calculation steps:
[( 310 - 627 ) ÷ 627] x 100 = -50.56%
Formula
Percentage change = [(310 - 627) / 627] x 100
Subtract the new number by the original number
310 - 627 = -317
-317 ÷ 627 = -0.5055821371610846
-0.5055821371610846 x 100 = -50.56%