-38.26% is the change from 826 to 510
Calculation steps:
[( 510 - 826 ) ÷ 826] x 100 = -38.26%
Formula
Percentage change = [(510 - 826) / 826] x 100
Subtract the new number by the original number
510 - 826 = -316
-316 ÷ 826 = -0.38256658595641646
-0.38256658595641646 x 100 = -38.26%