-15.43% is the change from 784 to 663
Calculation steps:
[( 663 - 784 ) ÷ 784] x 100 = -15.43%
Formula
Percentage change = [(663 - 784) / 784] x 100
Subtract the new number by the original number
663 - 784 = -121
-121 ÷ 784 = -0.15433673469387754
-0.15433673469387754 x 100 = -15.43%