-68.4% is the change from 921 to 291
Calculation steps:
[( 291 - 921 ) ÷ 921] x 100 = -68.4%
Formula
Percentage change = [(291 - 921) / 921] x 100
Subtract the new number by the original number
291 - 921 = -630
-630 ÷ 921 = -0.6840390879478827
-0.6840390879478827 x 100 = -68.4%