-70.38% is the change from 800 to 237
Calculation steps:
[( 237 - 800 ) ÷ 800] x 100 = -70.38%
Formula
Percentage change = [(237 - 800) / 800] x 100
Subtract the new number by the original number
237 - 800 = -563
-563 ÷ 800 = -0.70375
-0.70375 x 100 = -70.38%