-77.2% is the change from 478 to 109
Calculation steps:
[( 109 - 478 ) ÷ 478] x 100 = -77.2%
Formula
Percentage change = [(109 - 478) / 478] x 100
Subtract the new number by the original number
109 - 478 = -369
-369 ÷ 478 = -0.7719665271966527
-0.7719665271966527 x 100 = -77.2%