511.54% is the change from 78 to 477
Calculation steps:
[( 477 - 78 ) ÷ 78] x 100 = 511.54%
Formula
Percentage change = [(477 - 78) / 78] x 100
Subtract the new number by the original number
477 - 78 = 399
399 ÷ 78 = 5.115384615384615
5.115384615384615 x 100 = 511.54%