-76.18% is the change from 638 to 152
Calculation steps:
[( 152 - 638 ) ÷ 638] x 100 = -76.18%
Formula
Percentage change = [(152 - 638) / 638] x 100
Subtract the new number by the original number
152 - 638 = -486
-486 ÷ 638 = -0.7617554858934169
-0.7617554858934169 x 100 = -76.18%