-20.78% is the change from 977 to 774
Calculation steps:
[( 774 - 977 ) ÷ 977] x 100 = -20.78%
Formula
Percentage change = [(774 - 977) / 977] x 100
Subtract the new number by the original number
774 - 977 = -203
-203 ÷ 977 = -0.20777891504605936
-0.20777891504605936 x 100 = -20.78%