-76.79% is the change from 810 to 188
Calculation steps:
[( 188 - 810 ) ÷ 810] x 100 = -76.79%
Formula
Percentage change = [(188 - 810) / 810] x 100
Subtract the new number by the original number
188 - 810 = -622
-622 ÷ 810 = -0.7679012345679013
-0.7679012345679013 x 100 = -76.79%