-58.09% is the change from 513 to 215
Calculation steps:
[( 215 - 513 ) ÷ 513] x 100 = -58.09%
Formula
Percentage change = [(215 - 513) / 513] x 100
Subtract the new number by the original number
215 - 513 = -298
-298 ÷ 513 = -0.580896686159844
-0.580896686159844 x 100 = -58.09%