-64.05% is the change from 815 to 293
Calculation steps:
[( 293 - 815 ) ÷ 815] x 100 = -64.05%
Formula
Percentage change = [(293 - 815) / 815] x 100
Subtract the new number by the original number
293 - 815 = -522
-522 ÷ 815 = -0.6404907975460122
-0.6404907975460122 x 100 = -64.05%