-63.77% is the change from 770 to 279
Calculation steps:
[( 279 - 770 ) ÷ 770] x 100 = -63.77%
Formula
Percentage change = [(279 - 770) / 770] x 100
Subtract the new number by the original number
279 - 770 = -491
-491 ÷ 770 = -0.6376623376623377
-0.6376623376623377 x 100 = -63.77%