-70.74% is the change from 810 to 237
Calculation steps:
[( 237 - 810 ) ÷ 810] x 100 = -70.74%
Formula
Percentage change = [(237 - 810) / 810] x 100
Subtract the new number by the original number
237 - 810 = -573
-573 ÷ 810 = -0.7074074074074074
-0.7074074074074074 x 100 = -70.74%