-61.42% is the change from 801 to 309
Calculation steps:
[( 309 - 801 ) ÷ 801] x 100 = -61.42%
Formula
Percentage change = [(309 - 801) / 801] x 100
Subtract the new number by the original number
309 - 801 = -492
-492 ÷ 801 = -0.6142322097378277
-0.6142322097378277 x 100 = -61.42%