-7.15% is the change from 937 to 870
Calculation steps:
[( 870 - 937 ) ÷ 937] x 100 = -7.15%
Formula
Percentage change = [(870 - 937) / 937] x 100
Subtract the new number by the original number
870 - 937 = -67
-67 ÷ 937 = -0.07150480256136606
-0.07150480256136606 x 100 = -7.15%