-77.4% is the change from 845 to 191
Calculation steps:
[( 191 - 845 ) ÷ 845] x 100 = -77.4%
Formula
Percentage change = [(191 - 845) / 845] x 100
Subtract the new number by the original number
191 - 845 = -654
-654 ÷ 845 = -0.7739644970414201
-0.7739644970414201 x 100 = -77.4%