-73.75% is the change from 240 to 63
Calculation steps:
[( 63 - 240 ) ÷ 240] x 100 = -73.75%
Formula
Percentage change = [(63 - 240) / 240] x 100
Subtract the new number by the original number
63 - 240 = -177
-177 ÷ 240 = -0.7375
-0.7375 x 100 = -73.75%