-64.87% is the change from 780 to 274
Calculation steps:
[( 274 - 780 ) ÷ 780] x 100 = -64.87%
Formula
Percentage change = [(274 - 780) / 780] x 100
Subtract the new number by the original number
274 - 780 = -506
-506 ÷ 780 = -0.6487179487179487
-0.6487179487179487 x 100 = -64.87%