-7.96% is the change from 628 to 578
Calculation steps:
[( 578 - 628 ) ÷ 628] x 100 = -7.96%
Formula
Percentage change = [(578 - 628) / 628] x 100
Subtract the new number by the original number
578 - 628 = -50
-50 ÷ 628 = -0.07961783439490445
-0.07961783439490445 x 100 = -7.96%