-66.1% is the change from 652 to 221
Calculation steps:
[( 221 - 652 ) ÷ 652] x 100 = -66.1%
Formula
Percentage change = [(221 - 652) / 652] x 100
Subtract the new number by the original number
221 - 652 = -431
-431 ÷ 652 = -0.661042944785276
-0.661042944785276 x 100 = -66.1%