-94.07% is the change from 860 to 51
Calculation steps:
[( 51 - 860 ) ÷ 860] x 100 = -94.07%
Formula
Percentage change = [(51 - 860) / 860] x 100
Subtract the new number by the original number
51 - 860 = -809
-809 ÷ 860 = -0.9406976744186046
-0.9406976744186046 x 100 = -94.07%