-35.43% is the change from 779 to 503
Calculation steps:
[( 503 - 779 ) ÷ 779] x 100 = -35.43%
Formula
Percentage change = [(503 - 779) / 779] x 100
Subtract the new number by the original number
503 - 779 = -276
-276 ÷ 779 = -0.35430038510911427
-0.35430038510911427 x 100 = -35.43%