-64.46% is the change from 830 to 295
Calculation steps:
[( 295 - 830 ) ÷ 830] x 100 = -64.46%
Formula
Percentage change = [(295 - 830) / 830] x 100
Subtract the new number by the original number
295 - 830 = -535
-535 ÷ 830 = -0.6445783132530121
-0.6445783132530121 x 100 = -64.46%