-69.06% is the change from 921 to 285
Calculation steps:
[( 285 - 921 ) ÷ 921] x 100 = -69.06%
Formula
Percentage change = [(285 - 921) / 921] x 100
Subtract the new number by the original number
285 - 921 = -636
-636 ÷ 921 = -0.6905537459283387
-0.6905537459283387 x 100 = -69.06%