-2.13% is the change from 937 to 917
Calculation steps:
[( 917 - 937 ) ÷ 937] x 100 = -2.13%
Formula
Percentage change = [(917 - 937) / 937] x 100
Subtract the new number by the original number
917 - 937 = -20
-20 ÷ 937 = -0.021344717182497332
-0.021344717182497332 x 100 = -2.13%