-63.99% is the change from 597 to 215
Calculation steps:
[( 215 - 597 ) ÷ 597] x 100 = -63.99%
Formula
Percentage change = [(215 - 597) / 597] x 100
Subtract the new number by the original number
215 - 597 = -382
-382 ÷ 597 = -0.6398659966499163
-0.6398659966499163 x 100 = -63.99%