-81.36% is the change from 826 to 154
Calculation steps:
[( 154 - 826 ) ÷ 826] x 100 = -81.36%
Formula
Percentage change = [(154 - 826) / 826] x 100
Subtract the new number by the original number
154 - 826 = -672
-672 ÷ 826 = -0.8135593220338984
-0.8135593220338984 x 100 = -81.36%