32.94% is the change from 504 to 670
Calculation steps:
[( 670 - 504 ) ÷ 504] x 100 = 32.94%
Formula
Percentage change = [(670 - 504) / 504] x 100
Subtract the new number by the original number
670 - 504 = 166
166 ÷ 504 = 0.32936507936507936
0.32936507936507936 x 100 = 32.94%