-27.04% is the change from 921 to 672
Calculation steps:
[( 672 - 921 ) ÷ 921] x 100 = -27.04%
Formula
Percentage change = [(672 - 921) / 921] x 100
Subtract the new number by the original number
672 - 921 = -249
-249 ÷ 921 = -0.2703583061889251
-0.2703583061889251 x 100 = -27.04%