-82% is the change from 350 to 63
Calculation steps:
[( 63 - 350 ) ÷ 350] x 100 = -82%
Formula
Percentage change = [(63 - 350) / 350] x 100
Subtract the new number by the original number
63 - 350 = -287
-287 ÷ 350 = -0.82
-0.82 x 100 = -82%
Example