-77.57% is the change from 856 to 192
Calculation steps:
[( 192 - 856 ) ÷ 856] x 100 = -77.57%
Formula
Percentage change = [(192 - 856) / 856] x 100
Subtract the new number by the original number
192 - 856 = -664
-664 ÷ 856 = -0.7757009345794392
-0.7757009345794392 x 100 = -77.57%