-20.88% is the change from 771 to 610
Calculation steps:
[( 610 - 771 ) ÷ 771] x 100 = -20.88%
Formula
Percentage change = [(610 - 771) / 771] x 100
Subtract the new number by the original number
610 - 771 = -161
-161 ÷ 771 = -0.20881971465629054
-0.20881971465629054 x 100 = -20.88%