-75.5% is the change from 1000 to 245
Calculation steps:
[( 245 - 1000 ) ÷ 1000] x 100 = -75.5%
Formula
Percentage change = [(245 - 1000) / 1000] x 100
Subtract the new number by the original number
245 - 1000 = -755
-755 ÷ 1000 = -0.755
-0.755 x 100 = -75.5%