-75.79% is the change from 921 to 223
Calculation steps:
[( 223 - 921 ) ÷ 921] x 100 = -75.79%
Formula
Percentage change = [(223 - 921) / 921] x 100
Subtract the new number by the original number
223 - 921 = -698
-698 ÷ 921 = -0.757871878393051
-0.757871878393051 x 100 = -75.79%