-66.46% is the change from 814 to 273
Calculation steps:
[( 273 - 814 ) ÷ 814] x 100 = -66.46%
Formula
Percentage change = [(273 - 814) / 814] x 100
Subtract the new number by the original number
273 - 814 = -541
-541 ÷ 814 = -0.6646191646191646
-0.6646191646191646 x 100 = -66.46%