-18.52% is the change from 297 to 242
Calculation steps:
[( 242 - 297 ) ÷ 297] x 100 = -18.52%
Formula
Percentage change = [(242 - 297) / 297] x 100
Subtract the new number by the original number
242 - 297 = -55
-55 ÷ 297 = -0.18518518518518517
-0.18518518518518517 x 100 = -18.52%