-23.38% is the change from 847 to 649
Calculation steps:
[( 649 - 847 ) ÷ 847] x 100 = -23.38%
Formula
Percentage change = [(649 - 847) / 847] x 100
Subtract the new number by the original number
649 - 847 = -198
-198 ÷ 847 = -0.23376623376623376
-0.23376623376623376 x 100 = -23.38%