-68.18% is the change from 770 to 245
Calculation steps:
[( 245 - 770 ) ÷ 770] x 100 = -68.18%
Formula
Percentage change = [(245 - 770) / 770] x 100
Subtract the new number by the original number
245 - 770 = -525
-525 ÷ 770 = -0.6818181818181818
-0.6818181818181818 x 100 = -68.18%