-65.4% is the change from 818 to 283
Calculation steps:
[( 283 - 818 ) ÷ 818] x 100 = -65.4%
Formula
Percentage change = [(283 - 818) / 818] x 100
Subtract the new number by the original number
283 - 818 = -535
-535 ÷ 818 = -0.6540342298288508
-0.6540342298288508 x 100 = -65.4%