-64.66% is the change from 863 to 305
Calculation steps:
[( 305 - 863 ) ÷ 863] x 100 = -64.66%
Formula
Percentage change = [(305 - 863) / 863] x 100
Subtract the new number by the original number
305 - 863 = -558
-558 ÷ 863 = -0.6465816917728853
-0.6465816917728853 x 100 = -64.66%