-77.01% is the change from 931 to 214
Calculation steps:
[( 214 - 931 ) ÷ 931] x 100 = -77.01%
Formula
Percentage change = [(214 - 931) / 931] x 100
Subtract the new number by the original number
214 - 931 = -717
-717 ÷ 931 = -0.7701396348012889
-0.7701396348012889 x 100 = -77.01%