-79.57% is the change from 328 to 67
Calculation steps:
[( 67 - 328 ) ÷ 328] x 100 = -79.57%
Formula
Percentage change = [(67 - 328) / 328] x 100
Subtract the new number by the original number
67 - 328 = -261
-261 ÷ 328 = -0.7957317073170732
-0.7957317073170732 x 100 = -79.57%