-68.31% is the change from 830 to 263
Calculation steps:
[( 263 - 830 ) ÷ 830] x 100 = -68.31%
Formula
Percentage change = [(263 - 830) / 830] x 100
Subtract the new number by the original number
263 - 830 = -567
-567 ÷ 830 = -0.6831325301204819
-0.6831325301204819 x 100 = -68.31%