-80.73% is the change from 327 to 63
Calculation steps:
[( 63 - 327 ) ÷ 327] x 100 = -80.73%
Formula
Percentage change = [(63 - 327) / 327] x 100
Subtract the new number by the original number
63 - 327 = -264
-264 ÷ 327 = -0.8073394495412844
-0.8073394495412844 x 100 = -80.73%