-63.05% is the change from 931 to 344
Calculation steps:
[( 344 - 931 ) ÷ 931] x 100 = -63.05%
Formula
Percentage change = [(344 - 931) / 931] x 100
Subtract the new number by the original number
344 - 931 = -587
-587 ÷ 931 = -0.6305048335123523
-0.6305048335123523 x 100 = -63.05%