-33.19% is the change from 931 to 622
Calculation steps:
[( 622 - 931 ) ÷ 931] x 100 = -33.19%
Formula
Percentage change = [(622 - 931) / 931] x 100
Subtract the new number by the original number
622 - 931 = -309
-309 ÷ 931 = -0.3319011815252417
-0.3319011815252417 x 100 = -33.19%