-15.63% is the change from 787 to 664
Calculation steps:
[( 664 - 787 ) ÷ 787] x 100 = -15.63%
Formula
Percentage change = [(664 - 787) / 787] x 100
Subtract the new number by the original number
664 - 787 = -123
-123 ÷ 787 = -0.156289707750953
-0.156289707750953 x 100 = -15.63%