-28.15% is the change from 920 to 661
Calculation steps:
[( 661 - 920 ) ÷ 920] x 100 = -28.15%
Formula
Percentage change = [(661 - 920) / 920] x 100
Subtract the new number by the original number
661 - 920 = -259
-259 ÷ 920 = -0.28152173913043477
-0.28152173913043477 x 100 = -28.15%