-62.42% is the change from 620 to 233
Calculation steps:
[( 233 - 620 ) ÷ 620] x 100 = -62.42%
Formula
Percentage change = [(233 - 620) / 620] x 100
Subtract the new number by the original number
233 - 620 = -387
-387 ÷ 620 = -0.6241935483870967
-0.6241935483870967 x 100 = -62.42%