-58.16% is the change from 815 to 341
Calculation steps:
[( 341 - 815 ) ÷ 815] x 100 = -58.16%
Formula
Percentage change = [(341 - 815) / 815] x 100
Subtract the new number by the original number
341 - 815 = -474
-474 ÷ 815 = -0.5815950920245399
-0.5815950920245399 x 100 = -58.16%