-69.42% is the change from 206 to 63
Calculation steps:
[( 63 - 206 ) ÷ 206] x 100 = -69.42%
Formula
Percentage change = [(63 - 206) / 206] x 100
Subtract the new number by the original number
63 - 206 = -143
-143 ÷ 206 = -0.6941747572815534
-0.6941747572815534 x 100 = -69.42%