-69.77% is the change from 860 to 260
Calculation steps:
[( 260 - 860 ) ÷ 860] x 100 = -69.77%
Formula
Percentage change = [(260 - 860) / 860] x 100
Subtract the new number by the original number
260 - 860 = -600
-600 ÷ 860 = -0.6976744186046512
-0.6976744186046512 x 100 = -69.77%