-62.98% is the change from 597 to 221
Calculation steps:
[( 221 - 597 ) ÷ 597] x 100 = -62.98%
Formula
Percentage change = [(221 - 597) / 597] x 100
Subtract the new number by the original number
221 - 597 = -376
-376 ÷ 597 = -0.6298157453936348
-0.6298157453936348 x 100 = -62.98%