-66.98% is the change from 842 to 278
Calculation steps:
[( 278 - 842 ) ÷ 842] x 100 = -66.98%
Formula
Percentage change = [(278 - 842) / 842] x 100
Subtract the new number by the original number
278 - 842 = -564
-564 ÷ 842 = -0.669833729216152
-0.669833729216152 x 100 = -66.98%