-10.39% is the change from 645 to 578
Calculation steps:
[( 578 - 645 ) ÷ 645] x 100 = -10.39%
Formula
Percentage change = [(578 - 645) / 645] x 100
Subtract the new number by the original number
578 - 645 = -67
-67 ÷ 645 = -0.10387596899224806
-0.10387596899224806 x 100 = -10.39%