-66.34% is the change from 814 to 274
Calculation steps:
[( 274 - 814 ) ÷ 814] x 100 = -66.34%
Formula
Percentage change = [(274 - 814) / 814] x 100
Subtract the new number by the original number
274 - 814 = -540
-540 ÷ 814 = -0.6633906633906634
-0.6633906633906634 x 100 = -66.34%