-28.07% is the change from 488 to 351
Calculation steps:
[( 351 - 488 ) ÷ 488] x 100 = -28.07%
Formula
Percentage change = [(351 - 488) / 488] x 100
Subtract the new number by the original number
351 - 488 = -137
-137 ÷ 488 = -0.2807377049180328
-0.2807377049180328 x 100 = -28.07%