-66.87% is the change from 827 to 274
Calculation steps:
[( 274 - 827 ) ÷ 827] x 100 = -66.87%
Formula
Percentage change = [(274 - 827) / 827] x 100
Subtract the new number by the original number
274 - 827 = -553
-553 ÷ 827 = -0.6686819830713422
-0.6686819830713422 x 100 = -66.87%