-48.52% is the change from 977 to 503
Calculation steps:
[( 503 - 977 ) ÷ 977] x 100 = -48.52%
Formula
Percentage change = [(503 - 977) / 977] x 100
Subtract the new number by the original number
503 - 977 = -474
-474 ÷ 977 = -0.4851586489252815
-0.4851586489252815 x 100 = -48.52%