-30.61% is the change from 428 to 297
Calculation steps:
[( 297 - 428 ) ÷ 428] x 100 = -30.61%
Formula
Percentage change = [(297 - 428) / 428] x 100
Subtract the new number by the original number
297 - 428 = -131
-131 ÷ 428 = -0.3060747663551402
-0.3060747663551402 x 100 = -30.61%