-12.85% is the change from 957 to 834
Calculation steps:
[( 834 - 957 ) ÷ 957] x 100 = -12.85%
Formula
Percentage change = [(834 - 957) / 957] x 100
Subtract the new number by the original number
834 - 957 = -123
-123 ÷ 957 = -0.12852664576802508
-0.12852664576802508 x 100 = -12.85%