-68.12% is the change from 847 to 270
Calculation steps:
[( 270 - 847 ) ÷ 847] x 100 = -68.12%
Formula
Percentage change = [(270 - 847) / 847] x 100
Subtract the new number by the original number
270 - 847 = -577
-577 ÷ 847 = -0.6812278630460449
-0.6812278630460449 x 100 = -68.12%