-74.91% is the change from 291 to 73
Calculation steps:
[( 73 - 291 ) ÷ 291] x 100 = -74.91%
Formula
Percentage change = [(73 - 291) / 291] x 100
Subtract the new number by the original number
73 - 291 = -218
-218 ÷ 291 = -0.7491408934707904
-0.7491408934707904 x 100 = -74.91%