-74.3% is the change from 284 to 73
Calculation steps:
[( 73 - 284 ) ÷ 284] x 100 = -74.3%
Formula
Percentage change = [(73 - 284) / 284] x 100
Subtract the new number by the original number
73 - 284 = -211
-211 ÷ 284 = -0.7429577464788732
-0.7429577464788732 x 100 = -74.3%