-73.36% is the change from 304 to 81
Calculation steps:
[( 81 - 304 ) ÷ 304] x 100 = -73.36%
Formula
Percentage change = [(81 - 304) / 304] x 100
Subtract the new number by the original number
81 - 304 = -223
-223 ÷ 304 = -0.7335526315789473
-0.7335526315789473 x 100 = -73.36%