-24.75% is the change from 687 to 517
Calculation steps:
[( 517 - 687 ) ÷ 687] x 100 = -24.75%
Formula
Percentage change = [(517 - 687) / 687] x 100
Subtract the new number by the original number
517 - 687 = -170
-170 ÷ 687 = -0.24745269286754004
-0.24745269286754004 x 100 = -24.75%