-77.2% is the change from 851 to 194
Calculation steps:
[( 194 - 851 ) ÷ 851] x 100 = -77.2%
Formula
Percentage change = [(194 - 851) / 851] x 100
Subtract the new number by the original number
194 - 851 = -657
-657 ÷ 851 = -0.7720329024676851
-0.7720329024676851 x 100 = -77.2%