-61.89% is the change from 803 to 306
Calculation steps:
[( 306 - 803 ) ÷ 803] x 100 = -61.89%
Formula
Percentage change = [(306 - 803) / 803] x 100
Subtract the new number by the original number
306 - 803 = -497
-497 ÷ 803 = -0.6189290161892902
-0.6189290161892902 x 100 = -61.89%