-70.7% is the change from 809 to 237
Calculation steps:
[( 237 - 809 ) ÷ 809] x 100 = -70.7%
Formula
Percentage change = [(237 - 809) / 809] x 100
Subtract the new number by the original number
237 - 809 = -572
-572 ÷ 809 = -0.7070457354758962
-0.7070457354758962 x 100 = -70.7%