-76.22% is the change from 307 to 73
Calculation steps:
[( 73 - 307 ) ÷ 307] x 100 = -76.22%
Formula
Percentage change = [(73 - 307) / 307] x 100
Subtract the new number by the original number
73 - 307 = -234
-234 ÷ 307 = -0.762214983713355
-0.762214983713355 x 100 = -76.22%