-78.15% is the change from 856 to 187
Calculation steps:
[( 187 - 856 ) ÷ 856] x 100 = -78.15%
Formula
Percentage change = [(187 - 856) / 856] x 100
Subtract the new number by the original number
187 - 856 = -669
-669 ÷ 856 = -0.7815420560747663
-0.7815420560747663 x 100 = -78.15%