-18.41% is the change from 782 to 638
Calculation steps:
[( 638 - 782 ) ÷ 782] x 100 = -18.41%
Formula
Percentage change = [(638 - 782) / 782] x 100
Subtract the new number by the original number
638 - 782 = -144
-144 ÷ 782 = -0.18414322250639387
-0.18414322250639387 x 100 = -18.41%