-15.66% is the change from 779 to 657
Calculation steps:
[( 657 - 779 ) ÷ 779] x 100 = -15.66%
Formula
Percentage change = [(657 - 779) / 779] x 100
Subtract the new number by the original number
657 - 779 = -122
-122 ÷ 779 = -0.15661103979460847
-0.15661103979460847 x 100 = -15.66%