-54.7% is the change from 627 to 284
Calculation steps:
[( 284 - 627 ) ÷ 627] x 100 = -54.7%
Formula
Percentage change = [(284 - 627) / 627] x 100
Subtract the new number by the original number
284 - 627 = -343
-343 ÷ 627 = -0.5470494417862839
-0.5470494417862839 x 100 = -54.7%