-65.91% is the change from 663 to 226
Calculation steps:
[( 226 - 663 ) ÷ 663] x 100 = -65.91%
Formula
Percentage change = [(226 - 663) / 663] x 100
Subtract the new number by the original number
226 - 663 = -437
-437 ÷ 663 = -0.6591251885369532
-0.6591251885369532 x 100 = -65.91%