-17.94% is the change from 931 to 764
Calculation steps:
[( 764 - 931 ) ÷ 931] x 100 = -17.94%
Formula
Percentage change = [(764 - 931) / 931] x 100
Subtract the new number by the original number
764 - 931 = -167
-167 ÷ 931 = -0.17937701396348013
-0.17937701396348013 x 100 = -17.94%