-34.8% is the change from 477 to 311
Calculation steps:
[( 311 - 477 ) ÷ 477] x 100 = -34.8%
Formula
Percentage change = [(311 - 477) / 477] x 100
Subtract the new number by the original number
311 - 477 = -166
-166 ÷ 477 = -0.3480083857442348
-0.3480083857442348 x 100 = -34.8%