-75.23% is the change from 327 to 81
Calculation steps:
[( 81 - 327 ) ÷ 327] x 100 = -75.23%
Formula
Percentage change = [(81 - 327) / 327] x 100
Subtract the new number by the original number
81 - 327 = -246
-246 ÷ 327 = -0.7522935779816514
-0.7522935779816514 x 100 = -75.23%