-79.38% is the change from 931 to 192
Calculation steps:
[( 192 - 931 ) ÷ 931] x 100 = -79.38%
Formula
Percentage change = [(192 - 931) / 931] x 100
Subtract the new number by the original number
192 - 931 = -739
-739 ÷ 931 = -0.7937701396348013
-0.7937701396348013 x 100 = -79.38%