-22.67% is the change from 997 to 771
Calculation steps:
[( 771 - 997 ) ÷ 997] x 100 = -22.67%
Formula
Percentage change = [(771 - 997) / 997] x 100
Subtract the new number by the original number
771 - 997 = -226
-226 ÷ 997 = -0.22668004012036108
-0.22668004012036108 x 100 = -22.67%