-2.99% is the change from 971 to 942
Calculation steps:
[( 942 - 971 ) ÷ 971] x 100 = -2.99%
Formula
Percentage change = [(942 - 971) / 971] x 100
Subtract the new number by the original number
942 - 971 = -29
-29 ÷ 971 = -0.029866117404737384
-0.029866117404737384 x 100 = -2.99%