-26.93% is the change from 921 to 673
Calculation steps:
[( 673 - 921 ) ÷ 921] x 100 = -26.93%
Formula
Percentage change = [(673 - 921) / 921] x 100
Subtract the new number by the original number
673 - 921 = -248
-248 ÷ 921 = -0.2692725298588491
-0.2692725298588491 x 100 = -26.93%