-20.75% is the change from 771 to 611
Calculation steps:
[( 611 - 771 ) ÷ 771] x 100 = -20.75%
Formula
Percentage change = [(611 - 771) / 771] x 100
Subtract the new number by the original number
611 - 771 = -160
-160 ÷ 771 = -0.20752269779507135
-0.20752269779507135 x 100 = -20.75%