-65.22% is the change from 670 to 233
Calculation steps:
[( 233 - 670 ) ÷ 670] x 100 = -65.22%
Formula
Percentage change = [(233 - 670) / 670] x 100
Subtract the new number by the original number
233 - 670 = -437
-437 ÷ 670 = -0.6522388059701493
-0.6522388059701493 x 100 = -65.22%