835.8% is the change from 81 to 758
Calculation steps:
[( 758 - 81 ) ÷ 81] x 100 = 835.8%
Formula
Percentage change = [(758 - 81) / 81] x 100
Subtract the new number by the original number
758 - 81 = 677
677 ÷ 81 = 8.358024691358025
8.358024691358025 x 100 = 835.8%