-66.95% is the change from 826 to 273
Calculation steps:
[( 273 - 826 ) ÷ 826] x 100 = -66.95%
Formula
Percentage change = [(273 - 826) / 826] x 100
Subtract the new number by the original number
273 - 826 = -553
-553 ÷ 826 = -0.6694915254237288
-0.6694915254237288 x 100 = -66.95%