-64.75% is the change from 661 to 233
Calculation steps:
[( 233 - 661 ) ÷ 661] x 100 = -64.75%
Formula
Percentage change = [(233 - 661) / 661] x 100
Subtract the new number by the original number
233 - 661 = -428
-428 ÷ 661 = -0.6475037821482602
-0.6475037821482602 x 100 = -64.75%