-55.21% is the change from 815 to 365
Calculation steps:
[( 365 - 815 ) ÷ 815] x 100 = -55.21%
Formula
Percentage change = [(365 - 815) / 815] x 100
Subtract the new number by the original number
365 - 815 = -450
-450 ÷ 815 = -0.5521472392638037
-0.5521472392638037 x 100 = -55.21%