-28.65% is the change from 904 to 645
Calculation steps:
[( 645 - 904 ) ÷ 904] x 100 = -28.65%
Formula
Percentage change = [(645 - 904) / 904] x 100
Subtract the new number by the original number
645 - 904 = -259
-259 ÷ 904 = -0.28650442477876104
-0.28650442477876104 x 100 = -28.65%