-64.43% is the change from 863 to 307
Calculation steps:
[( 307 - 863 ) ÷ 863] x 100 = -64.43%
Formula
Percentage change = [(307 - 863) / 863] x 100
Subtract the new number by the original number
307 - 863 = -556
-556 ÷ 863 = -0.6442641946697567
-0.6442641946697567 x 100 = -64.43%