-20.79% is the change from 303 to 240
Calculation steps:
[( 240 - 303 ) ÷ 303] x 100 = -20.79%
Formula
Percentage change = [(240 - 303) / 303] x 100
Subtract the new number by the original number
240 - 303 = -63
-63 ÷ 303 = -0.2079207920792079
-0.2079207920792079 x 100 = -20.79%