-38.14% is the change from 826 to 511
Calculation steps:
[( 511 - 826 ) ÷ 826] x 100 = -38.14%
Formula
Percentage change = [(511 - 826) / 826] x 100
Subtract the new number by the original number
511 - 826 = -315
-315 ÷ 826 = -0.3813559322033898
-0.3813559322033898 x 100 = -38.14%