-31.03% is the change from 780 to 538
Calculation steps:
[( 538 - 780 ) ÷ 780] x 100 = -31.03%
Formula
Percentage change = [(538 - 780) / 780] x 100
Subtract the new number by the original number
538 - 780 = -242
-242 ÷ 780 = -0.31025641025641026
-0.31025641025641026 x 100 = -31.03%