-30.95% is the change from 210 to 145
Calculation steps:
[( 145 - 210 ) ÷ 210] x 100 = -30.95%
Formula
Percentage change = [(145 - 210) / 210] x 100
Subtract the new number by the original number
145 - 210 = -65
-65 ÷ 210 = -0.30952380952380953
-0.30952380952380953 x 100 = -30.95%