-66.59% is the change from 826 to 276
Calculation steps:
[( 276 - 826 ) ÷ 826] x 100 = -66.59%
Formula
Percentage change = [(276 - 826) / 826] x 100
Subtract the new number by the original number
276 - 826 = -550
-550 ÷ 826 = -0.6658595641646489
-0.6658595641646489 x 100 = -66.59%