-66.45% is the change from 927 to 311
Calculation steps:
[( 311 - 927 ) ÷ 927] x 100 = -66.45%
Formula
Percentage change = [(311 - 927) / 927] x 100
Subtract the new number by the original number
311 - 927 = -616
-616 ÷ 927 = -0.6645091693635383
-0.6645091693635383 x 100 = -66.45%