-66.43% is the change from 977 to 328
Calculation steps:
[( 328 - 977 ) ÷ 977] x 100 = -66.43%
Formula
Percentage change = [(328 - 977) / 977] x 100
Subtract the new number by the original number
328 - 977 = -649
-649 ÷ 977 = -0.6642784032753326
-0.6642784032753326 x 100 = -66.43%