-38.05% is the change from 770 to 477
Calculation steps:
[( 477 - 770 ) ÷ 770] x 100 = -38.05%
Formula
Percentage change = [(477 - 770) / 770] x 100
Subtract the new number by the original number
477 - 770 = -293
-293 ÷ 770 = -0.38051948051948054
-0.38051948051948054 x 100 = -38.05%