-18.67% is the change from 814 to 662
Calculation steps:
[( 662 - 814 ) ÷ 814] x 100 = -18.67%
Formula
Percentage change = [(662 - 814) / 814] x 100
Subtract the new number by the original number
662 - 814 = -152
-152 ÷ 814 = -0.18673218673218672
-0.18673218673218672 x 100 = -18.67%