-62.71% is the change from 818 to 305
Calculation steps:
[( 305 - 818 ) ÷ 818] x 100 = -62.71%
Formula
Percentage change = [(305 - 818) / 818] x 100
Subtract the new number by the original number
305 - 818 = -513
-513 ÷ 818 = -0.6271393643031785
-0.6271393643031785 x 100 = -62.71%