-63.43% is the change from 670 to 245
Calculation steps:
[( 245 - 670 ) ÷ 670] x 100 = -63.43%
Formula
Percentage change = [(245 - 670) / 670] x 100
Subtract the new number by the original number
245 - 670 = -425
-425 ÷ 670 = -0.6343283582089553
-0.6343283582089553 x 100 = -63.43%