-63.17% is the change from 657 to 242
Calculation steps:
[( 242 - 657 ) ÷ 657] x 100 = -63.17%
Formula
Percentage change = [(242 - 657) / 657] x 100
Subtract the new number by the original number
242 - 657 = -415
-415 ÷ 657 = -0.6316590563165906
-0.6316590563165906 x 100 = -63.17%