-66.33% is the change from 977 to 329
Calculation steps:
[( 329 - 977 ) ÷ 977] x 100 = -66.33%
Formula
Percentage change = [(329 - 977) / 977] x 100
Subtract the new number by the original number
329 - 977 = -648
-648 ÷ 977 = -0.6632548618219037
-0.6632548618219037 x 100 = -66.33%