-1.81% is the change from 937 to 920
Calculation steps:
[( 920 - 937 ) ÷ 937] x 100 = -1.81%
Formula
Percentage change = [(920 - 937) / 937] x 100
Subtract the new number by the original number
920 - 937 = -17
-17 ÷ 937 = -0.01814300960512273
-0.01814300960512273 x 100 = -1.81%