-69.43% is the change from 687 to 210
Calculation steps:
[( 210 - 687 ) ÷ 687] x 100 = -69.43%
Formula
Percentage change = [(210 - 687) / 687] x 100
Subtract the new number by the original number
210 - 687 = -477
-477 ÷ 687 = -0.6943231441048034
-0.6943231441048034 x 100 = -69.43%