-63.76% is the change from 687 to 249
Calculation steps:
[( 249 - 687 ) ÷ 687] x 100 = -63.76%
Formula
Percentage change = [(249 - 687) / 687] x 100
Subtract the new number by the original number
249 - 687 = -438
-438 ÷ 687 = -0.6375545851528385
-0.6375545851528385 x 100 = -63.76%