-74.48% is the change from 921 to 235
Calculation steps:
[( 235 - 921 ) ÷ 921] x 100 = -74.48%
Formula
Percentage change = [(235 - 921) / 921] x 100
Subtract the new number by the original number
235 - 921 = -686
-686 ÷ 921 = -0.744842562432139
-0.744842562432139 x 100 = -74.48%