-63.31% is the change from 815 to 299
Calculation steps:
[( 299 - 815 ) ÷ 815] x 100 = -63.31%
Formula
Percentage change = [(299 - 815) / 815] x 100
Subtract the new number by the original number
299 - 815 = -516
-516 ÷ 815 = -0.6331288343558282
-0.6331288343558282 x 100 = -63.31%