-11.04% is the change from 670 to 596
Calculation steps:
[( 596 - 670 ) ÷ 670] x 100 = -11.04%
Formula
Percentage change = [(596 - 670) / 670] x 100
Subtract the new number by the original number
596 - 670 = -74
-74 ÷ 670 = -0.11044776119402985
-0.11044776119402985 x 100 = -11.04%