-91.8% is the change from 890 to 73
Calculation steps:
[( 73 - 890 ) ÷ 890] x 100 = -91.8%
Formula
Percentage change = [(73 - 890) / 890] x 100
Subtract the new number by the original number
73 - 890 = -817
-817 ÷ 890 = -0.9179775280898876
-0.9179775280898876 x 100 = -91.8%