-77.63% is the change from 456 to 102
Calculation steps:
[( 102 - 456 ) ÷ 456] x 100 = -77.63%
Formula
Percentage change = [(102 - 456) / 456] x 100
Subtract the new number by the original number
102 - 456 = -354
-354 ÷ 456 = -0.7763157894736842
-0.7763157894736842 x 100 = -77.63%