-64.99% is the change from 597 to 209
Calculation steps:
[( 209 - 597 ) ÷ 597] x 100 = -64.99%
Formula
Percentage change = [(209 - 597) / 597] x 100
Subtract the new number by the original number
209 - 597 = -388
-388 ÷ 597 = -0.6499162479061976
-0.6499162479061976 x 100 = -64.99%