-49.12% is the change from 627 to 319
Calculation steps:
[( 319 - 627 ) ÷ 627] x 100 = -49.12%
Formula
Percentage change = [(319 - 627) / 627] x 100
Subtract the new number by the original number
319 - 627 = -308
-308 ÷ 627 = -0.49122807017543857
-0.49122807017543857 x 100 = -49.12%