-78.84% is the change from 931 to 197
Calculation steps:
[( 197 - 931 ) ÷ 931] x 100 = -78.84%
Formula
Percentage change = [(197 - 931) / 931] x 100
Subtract the new number by the original number
197 - 931 = -734
-734 ÷ 931 = -0.7883995703544576
-0.7883995703544576 x 100 = -78.84%