-97.09% is the change from 860 to 25
Calculation steps:
[( 25 - 860 ) ÷ 860] x 100 = -97.09%
Formula
Percentage change = [(25 - 860) / 860] x 100
Subtract the new number by the original number
25 - 860 = -835
-835 ÷ 860 = -0.9709302325581395
-0.9709302325581395 x 100 = -97.09%