-18.63% is the change from 612 to 498
Calculation steps:
[( 498 - 612 ) ÷ 612] x 100 = -18.63%
Formula
Percentage change = [(498 - 612) / 612] x 100
Subtract the new number by the original number
498 - 612 = -114
-114 ÷ 612 = -0.18627450980392157
-0.18627450980392157 x 100 = -18.63%