-63.56% is the change from 837 to 305
Calculation steps:
[( 305 - 837 ) ÷ 837] x 100 = -63.56%
Formula
Percentage change = [(305 - 837) / 837] x 100
Subtract the new number by the original number
305 - 837 = -532
-532 ÷ 837 = -0.6356033452807647
-0.6356033452807647 x 100 = -63.56%