-69.38% is the change from 800 to 245
Calculation steps:
[( 245 - 800 ) ÷ 800] x 100 = -69.38%
Formula
Percentage change = [(245 - 800) / 800] x 100
Subtract the new number by the original number
245 - 800 = -555
-555 ÷ 800 = -0.69375
-0.69375 x 100 = -69.38%