-64.42% is the change from 770 to 274
Calculation steps:
[( 274 - 770 ) ÷ 770] x 100 = -64.42%
Formula
Percentage change = [(274 - 770) / 770] x 100
Subtract the new number by the original number
274 - 770 = -496
-496 ÷ 770 = -0.6441558441558441
-0.6441558441558441 x 100 = -64.42%