-15.77% is the change from 780 to 657
Calculation steps:
[( 657 - 780 ) ÷ 780] x 100 = -15.77%
Formula
Percentage change = [(657 - 780) / 780] x 100
Subtract the new number by the original number
657 - 780 = -123
-123 ÷ 780 = -0.1576923076923077
-0.1576923076923077 x 100 = -15.77%