-22.36% is the change from 993 to 771
Calculation steps:
[( 771 - 993 ) ÷ 993] x 100 = -22.36%
Formula
Percentage change = [(771 - 993) / 993] x 100
Subtract the new number by the original number
771 - 993 = -222
-222 ÷ 993 = -0.22356495468277945
-0.22356495468277945 x 100 = -22.36%