-70.1% is the change from 863 to 258
Calculation steps:
[( 258 - 863 ) ÷ 863] x 100 = -70.1%
Formula
Percentage change = [(258 - 863) / 863] x 100
Subtract the new number by the original number
258 - 863 = -605
-605 ÷ 863 = -0.7010428736964078
-0.7010428736964078 x 100 = -70.1%