-97.02% is the change from 771 to 23
Calculation steps:
[( 23 - 771 ) ÷ 771] x 100 = -97.02%
Formula
Percentage change = [(23 - 771) / 771] x 100
Subtract the new number by the original number
23 - 771 = -748
-748 ÷ 771 = -0.9701686121919585
-0.9701686121919585 x 100 = -97.02%