-62.39% is the change from 670 to 252
Calculation steps:
[( 252 - 670 ) ÷ 670] x 100 = -62.39%
Formula
Percentage change = [(252 - 670) / 670] x 100
Subtract the new number by the original number
252 - 670 = -418
-418 ÷ 670 = -0.6238805970149254
-0.6238805970149254 x 100 = -62.39%