-60.47% is the change from 511 to 202
Calculation steps:
[( 202 - 511 ) ÷ 511] x 100 = -60.47%
Formula
Percentage change = [(202 - 511) / 511] x 100
Subtract the new number by the original number
202 - 511 = -309
-309 ÷ 511 = -0.6046966731898239
-0.6046966731898239 x 100 = -60.47%