-77.44% is the change from 851 to 192
Calculation steps:
[( 192 - 851 ) ÷ 851] x 100 = -77.44%
Formula
Percentage change = [(192 - 851) / 851] x 100
Subtract the new number by the original number
192 - 851 = -659
-659 ÷ 851 = -0.7743830787309048
-0.7743830787309048 x 100 = -77.44%