-24.37% is the change from 677 to 512
Calculation steps:
[( 512 - 677 ) ÷ 677] x 100 = -24.37%
Formula
Percentage change = [(512 - 677) / 677] x 100
Subtract the new number by the original number
512 - 677 = -165
-165 ÷ 677 = -0.24372230428360414
-0.24372230428360414 x 100 = -24.37%