-67.97% is the change from 843 to 270
Calculation steps:
[( 270 - 843 ) ÷ 843] x 100 = -67.97%
Formula
Percentage change = [(270 - 843) / 843] x 100
Subtract the new number by the original number
270 - 843 = -573
-573 ÷ 843 = -0.6797153024911032
-0.6797153024911032 x 100 = -67.97%