-80.85% is the change from 684 to 131
Calculation steps:
[( 131 - 684 ) ÷ 684] x 100 = -80.85%
Formula
Percentage change = [(131 - 684) / 684] x 100
Subtract the new number by the original number
131 - 684 = -553
-553 ÷ 684 = -0.8084795321637427
-0.8084795321637427 x 100 = -80.85%