-29.85% is the change from 938 to 658
Calculation steps:
[( 658 - 938 ) ÷ 938] x 100 = -29.85%
Formula
Percentage change = [(658 - 938) / 938] x 100
Subtract the new number by the original number
658 - 938 = -280
-280 ÷ 938 = -0.29850746268656714
-0.29850746268656714 x 100 = -29.85%