-63.73% is the change from 830 to 301
Calculation steps:
[( 301 - 830 ) ÷ 830] x 100 = -63.73%
Formula
Percentage change = [(301 - 830) / 830] x 100
Subtract the new number by the original number
301 - 830 = -529
-529 ÷ 830 = -0.6373493975903615
-0.6373493975903615 x 100 = -63.73%